Q1. Consider the following statements:

• 1. In a healthy human eye, the focussing is done by the change in the convexity of the lens through ciliary muscles.
• 2. Hypermetropia is corrected by using a converging lens.
• 3. Human eye is most sensitive to red colour.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q2. Consider the following statements:

• 1. If the length of tube is less and cannot accommodate the maximum rise of liquid, then the meniscus will adjust itself so that the water does not spill.
• 2. The shape of a non-wetting liquid placed in a capillary tube is convex upwards.
• 3. For a liquid which is rising in a capillary, the angle of contact is obtuse.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q3. Consider the following statements:

• 1. Branch of Biology in which we study about the treatment of mental disease, is called Psychiatry.
• 2. Ophthalmology is the branch of science in which we study about the eye.
• 3. Nephrology is the study of kidney.
• 4. Study of pulse and arterial blood pressure is called Sphygmology.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1, 2 and 4
• (d) All of these

Q4. Consider the following statements:

• 1. A bond formed by the transfer of electrons between the atoms of the element is called ionic bond.
• 2. A bond formed by the sharing of electrons between the atoms of the elements is called covalent bond.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) Both 1 and 2
• (d) None of these

Q5. Consider the following statements about the laws of refraction:

• 1. The incident ray, the refracted ray and normal to the interface at the point of incidence, all lie in the same plane.
• 2. Whenever light goes from one medium to another, the frequency of light and phase do not change. However, the velocity of light and the wavelength change.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) Both 1 and 2
• (d) None of these

Q6. Consider the following statements:

• 1. Significance of mitosis cell division is producing cell genetically similar to parent cell.
• 2. Meiosis division is also known as reduction division.
• 3. As compared to mitosis, meiosis has exchange of chromatid segments.

Which of the statements given above are correct about cell division?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q7. Which of the following is/are part(s) of central Processing Unit (CPU) of computer?

• 1. Control unit
• 2. Arithmetic logic unit
• 3. Memory

Select the correct option.

• (a) 1 and 2
• (b) 1 and 3
• (c) All of these
• (d) None of these

Q8. Consider the following statements about oxidation. It is the process which involves:

• 1. removal of oxygen.
• 2. addition of hydrogen.
• 3. removal of an electropositive element.
• 4. addition of an electronegative element.

Which of the statements given above is/are false about reduction?

• (a) Only 1
• (b) 1 and 2
• (c) 3 and 4
• (d) All of these

Q9. Consider the following sentences:

• 1. In ordinary bulbs, only 5% to 10% electrical energy is converted into light energy.
• 2. Tungsten has very high melting point as 3422°C, the filament of bulb is made of it.
• 3. The mica has good electrical resistance.
• 4. The electric bulb was first invented by Thomas Alva Edison.

Which of the statements given above is/are correct?

• (a) 1 and 3
• (b) 3 and 4
• (c) All of the above
• (d) None of the above

Q10. Consider the following statements:

• 1. Epithelium tissue forms protective layer of body.
• 2. Transmission of stimuli from one part of body to other part takes place through nervous tissue.
• 3. Blood is an example of tissue.

Which of the statements given above are correct about tissue?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q11. Consider the following statements:

• 1. Acetylene is utilised in the form of anaesthesia, in the welding and cutting the metallic bodies, in the ripening of fruits etc.
• 2. Chlorofluorocarbon (CFC) is used in the form of solvent, coolent and preservator.
• 3. Benzene is used in dry cleaning of woolen garments, in the manufacturing of explosive.

Which of the statements given above correct?

• (a) 1 and 2
• (b) 1 and 3
• (c) 2 and 3
• (d) All of these

Q12. Consider the following statements:

• 1. If ν₁ and ν₂ are the frequencies of two tuning forks, then the beat frequency is ν₁ + ν₂.
• 2. To hear distinct beats, difference in frequencies of two sources should be less than 10.
• 3. More the number of beats per second, more difficult to hear them.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q13. Consider the following statements:

• 1. In humans, female sex is determined by XX-chromosomes.
• 2. Male sex is determined by XY-chromosomes.

Which of the statements given above is/are correct?

• (a) Both 1 and 2
• (b) Only 1
• (c) Only 2
• (d) None of these

Q14. Consider the following statements:

• 1. An electronic emission spectrum will contain more lines than the corresponding absorptions.
• 2. In any p-orbital, there are maximum of six electrons.
• 3. Absolute value of the charge of the electron was determined by Milikan.
• 4. Electron in the H-atom in its ground state can absorb energy but can't emit energy.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) 2 and 3
• (c) 1, 3 and 4
• (d) All of these

Q15. The acceleration due to Earth's gravity, decreases if:

• 1. we go up from the surface of the Earth.
• 2. we go from the equator towards the pole.
• 3. the rotation speed of the Earth is increased.
• 4. we go down from the surface of the Earth towards its centre.

Which of the statements given above are correct?

• (a) 1, 2 and 3
• (b) 1, 3 and 4
• (c) 1, 2 and 4
• (d) All of these

Q16. Consider the following statements:

• 1. Ore is heated generally in the absence of air, then process is called calcination.
• 2. Ore is heated generally in the presence of air, then process is called roasting.
• 3. Reduction of oxide with carbon at high temperature, is called smelting.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these

Q17. Which of the following is not correct about optical storage?

• (a) It stores the information in deformities on the surface of a circular disk.
• (b) It reads this information by illuminating the surface with a laser diode and observing the reflection.
• (c) Optical disc is volatile.
• (d) An optical drive is a device in a computer that can read CD-ROMs or other optical discs.

Q18. Consider the following statements:

• 1. Azolla is aquatic fern.
• 2. Equisetum contains silica spores.
• 3. Sphagnum also called as peatmoss, is used in transportation.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of the above

Q19. Consider a vehicle going on a horizontal road towards East. Neglect any force by the air. The frictional force on the vehicle by the road:

• (a) is zero if the vehicle is moving with a non-uniform velocity
• (b) is towards East if the vehicle is accelerating
• (c) must be towards East
• (d) must be towards West

Q20. Consider the following statements:

• 1. Radioactivity tracers are commonly used in the medical field and also in the study of plants and animals.
• 2. Radiation is used and produced in nuclear reactors, which controls fission reactions to produce energy and new substances from the fission products.
• 3. Radiation is also used to sterilise medical instrument and food.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 1 and 3
• (c) 2 and 3
• (d) All of these

Q21. Consider the following statements:

• 1. Transfer of pollen grain from pollen sac to stigma is called pollination.
• 2. Anemophily pollination takes place by wind.
• 3. Entomophily pollination occurs with the help of insects.

Which of the statements given above are correct about pollination?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these

Q22. Consider the following statements:

• 1. Alpha rays emitted from a radioactive substance, are helium nucleus.
• 2. Beta rays emitted by radioactive substance, are charged particles emitted by the nucleus.
• 3. Gamma rays are electromagnetic waves.
• 4. The nuclear force is a short range force.

Which of the statements given above are correct?

• (a) 1, 2 and 3
• (b) 2, 3 and 4
• (c) 1, 2 and 4
• (d) All of the above

Q23. Consider the following statements about smart cards:

• 1. A smart card is any packet sized card with embedded integrated circuits.
• 2. Small cards are madeup of plastic, generally polyvinyl chloride.
• 3. Smart cards can provide identification, authentication, data storage and application processing.

Which of the statements given above is/are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these

Q24. Consider the following statements:

• 1. Chlorophyll appears green.
• 2. It absorbs light mainly in the green region of light spectrum.

Which of the statements given above is/are correct?

• (a) Both 1 and 2
• (b) Only 1
• (c) Only 2
• (d) None of these

Q25. Consider the following statements:

• 1. Among the fertilisers used, urea contains maximum percentage of N.
• 2. The mixture of calcium sulphate and calcium dihydrogen phosphate, is known as super phosphate of lime.
• 3. Potassium magnesium sulphate is called the muriate of potash.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these

Q26. Consider the following statements about a liquid allowed into a tube of truncated cone shape:

• 1. The speed is high at the wider end and low at the narrow end.
• 2. The speed is low at the wider end and high at the narrow end.
• 3. The speed is same at both ends in a stream line flow.
• 4. The liquid flows with non-uniform velocity in the tube.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 1, 2 and 4
• (c) 1, 2 and 3
• (d) 2 and 4

Q27. The human eye is like a camera and hence, it contains a system of lens. The eye lens forms:

• (a) a straight or upright real image of the object on the retina
• (b) an inverted, virtual image of the object on the retina
• (c) an inverted, real image of the object on the retina
• (d) a straight or upright real image of the object on the iris

Q28. Rutherford's model of atom is considered unsuitable because:

• 1. a positively charged nucleus remain separated from negatively charged electrons.
• 2. an accelerated electron would continuously lose energy in the form of radiation.
• 3. nuclear mass is not sufficiently heavy to keep the light electron in its orbit.
• 4. the centre of gravity of the system would be within the volume of the nucleus.

Which of the statements given above is/are correct?

• (a) 2 and 3
• (b) Only 2
• (c) Only 4
• (d) 1, 2 and 3

Q29. Consider the following statements:

• 1. All radioactive elements decay exponentially with time.
• 2. Half-life time of radioactive element is the time required for one-half of the radioactive atoms to disintegrate.
• 3. Age of the Earth can be determined by radiocarbon dating.
• 4. Half-life time of a radioactive element is 50% of its average life period.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 1, 3 and 4
• (c) 1, 2 and 3
• (d) 2 and 3

Q30. Consider the following statements:

• 1. WiMax (World wide Interoperability for microwave access) is a wireless communication standard.
• 2. It is designed to provide 30 to 40 Mbps data rates up to glops for fixed stations.
• 3. Mobile WiMax is a replacement candidate for cellular phone technologies such as GSM and CDMA.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these

Q31. Consider the following statements:

• 1. A black board is an example of ideal black body.
• 2. Silver in the best conductor of heat.
• 3. Clear nights are colder than cloudy nights.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q32. Consider the following statements:

• 1. Crystalline solids do not have sharp melting points.
• 2. Amorphous solids are isotropic.
• 3. Crystalline solids have short range order of arrangement of constituents.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) 2 and 3
• (d) All of these

Q33. Consider the following statements:

• 1. Lateral outgrowths of leaf base are called stipules.
• 2. Leaf with stipules, called as stipulate.
• 3. Leaf without stipules, called as exstipulate.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these

Q34. Consider the following statements:

• 1. As pressure increases, volume increases at constant temperature.
• 2. As pressure increases, volume decreases at constant temperature.
• 3. As temperature increases, pressure decreases at constant volume.
• 4. As temperature increases, pressure increases at constant volume.

Which of the statements given above is a correct statement of Gay Lussac's law describing the behaviour of a fixed amount of gas?

• (a) Only 1
• (b) Only 2
• (c) Only 3
• (d) Only 4

Q35. Consider the following statements:

• 1. A body i.e. a good radiator, is also a good absorber of radiation at a given wavelength.
• 2. According to Kirchhoff's law, the absorptivity of a body is equal to its emissivity at a given wavelength.
• 3. A perfectly black body has absorptive power equal to unity.

Which of the statements given above are correct?

• (a) 1, 2 and 3
• (b) 1 and 2
• (c) 2 and 3
• (d) 1 and 3

Q36. Consider the following statements:

• 1. Taproot develops from radicle.
• 2. Adventitious root develops from other parts of plants.

Which of the statements given above is/are correct about root?

• (a) Only 1
• (b) Only 2
• (c) Both 1 and 2
• (d) None of these

Q37. Which of the following is/are the service models of cloud computing?

• 1. Infrastructure as a Service (IaaS)
• 2. Platform as a Service (PaaS)
• 3. Software as a Service (SaaS)
• 4. Desktop virtualisation.

Select the correct answer using the codes given below.

• (a) 1 and 2
• (b) 2 and 3
• (c) 3 and 4
• (d) All of these

Q38. Consider the following statements:

• 1. Galvanic cell converts chemical energy into electrical energy.
• 2. In a galvanic cell, the electron flow from anode to cathode occurs through the external circuit.
• 3. Galvanic cell converts metal from its elemental state to the combined state.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) 1 and 2
• (d) All of these

Q39. Consider the following statements:

• 1. The space surrounding a charge in uniform motion, has only magnetic field.
• 2. The core of an electromagnet is madeup of soft iron because soft iron has large susceptibility and large retentivity.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) Both 1 and 2
• (d) None of these

Q40. Given below are the functions of calcium for body regulation, which is/are incorrect function(s) among them?

• 1. Bone, teeth formation and growth
• 2. Acid and base regulation
• 3. Digestion
• 4. Regulation of heart beats

Select the correct answer using the codes given below.

• (a) 1 and 2
• (b) Only 3
• (c) 1 and 2
• (d) 1, 3 and 4

Q41. Consider the following statements about laughing gas (N₂O):

• 1. It is used as a propellant for whipped ice-cream.
• 2. It is used as an anaesthetic.
• 3. It is used for the preparation of N₂H₃.
• 4. It is used as fuel for rockets.

Which of the statements given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) 2 and 3
• (d) All of these

Q42. Consider the following statements:

• 1. Pilot tube is an instrument and is based upon Bernoullis theorem by which the rate of flow of the gas is measured.
• 2. The coefficient of viscosity is the only parameter through which the viscosity of the fluid is measured.
• 3. Negative sign of coefficient of viscosity indicates that the viscous force opposes the relative motion.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) 1, 2 and 3

Q43. Consider the following compounds with the reference to constituent of dettol:

• 1. Chloroxylenol
• 2. Tarpineol

Which of the compounds given above is/are correct?

• (a) Only 1
• (b) Only 2
• (c) Both 1 and 2
• (d) None of these

Q44. Consider the following statements about the video conference:

• 1. This is a system that allow us to conduct meetings or training at different places simultaneously.
• 2. It includes the codec unit, i.e. brain and heart of video conferencing system.
• 3. It does not connect individuals on real-time basis.

Which of the statements given above is/are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) None of the above

Q45. Consider the following statements:

• 1. The sugar present in RNA, is ribose.
• 2. The pyrimidines found in RNA are thymine.
• 3. The genomic RNA is double stranded in wound tumour virus and retrovirus.

Which of the statements given above are correct about RNA?

• (a) 1 and 2
• (b) 1 and 3
• (c) 2 and 3
• (d) All of these

Q46. Mud houses are cooler in summer and warmer in winter because:

• (a) mud is superconductor of heat
• (b) mud is good conductor of heat
• (c) mud is bad conductor of heat
• (d) None of the above

Q47. Which of the following is/are not search engine (s)?

• 1. Laicos
• 2. Altavista
• 3. Telnet
• 4. Archic

Choose the correct options from the codes given below.

• (a) 1 and 3
• (b) 3 and 4
• (c) 1 and 2
• (d) None of these

Q48. Consider the following plant products:

• 1. Apple
• 2. Plum
• 3. Potato
• 4. Strawberry

Which of the above are rich sources of antioxidants?

• (a) 1 and 3
• (b) 2 and 4
• (c) 1, 3 and 4
• (d) 1, 2 and 4

Q49. In a nuclear reactor, self-sustained chain reaction is possible because:

• 1. more neutrons are released in each of the fission reactions.
• 2. the neutrons immediately take part in the fission process.
• 3. the fast neutrons are slowed down by graphite.
• 4. every neutron released in the fission reaction initiates further fission.

Which of the statements given above are correct?

• (a) 1, 2 and 3
• (b) 1 and 3
• (c) 2 and 4
• (d) 2, 3 and 4

Q50. Consider the following statements:

• 1. National Informatics Centre (NIC) is a premier organisation that has set-up a satellite based nation which computer communication network called NICNET.
• 2. NIC is a part of Ministry of Science and Technology.
• 3. NIC has developed network based application for general Election in India.

Which of the statements given above are correct?

• (a) 1 and 2
• (b) 2 and 3
• (c) 1 and 3
• (d) All of these