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Q1. The refractive index of glass with respect to air is 1.85. What is the refractive index of air with respect to glass?
Correct answer : 2
Q2. The refractive index of glass depends on
Correct answer : 3
Q3. The refractive index is more for ............
Correct answer : 2
Q4. The refraction takes place in the lens because the refractive index of glass is
Correct answer : 4
Q5. The reciprocal of resistance is called
Correct answer : 1
Q6. The reason for ............. is low converging power of the eye lens because of weak action of the ciliary muscles.
Correct answer : 4
Q7. The real inverted and highly diminished image if formed at focus of lens then
Correct answer : 4
Q8. The reactor which produce their own fuel during their operation is called ..........
Correct answer : 4
Q9. The rays coming out of uranium sample affects ...................
Correct answer : 2
Q10. The ratio of wavelength of two colours is 4: 5. The ratio of the amount of these colours scattered by air molecules is
Correct answer : 4
Q11. The ratio of the number of neutrons present in a particular generation to the number of neutrons is the preceding generation is ..........
Correct answer : 4
Q12. The ratio of radius of curvature to focal length of a spherical mirror is .............. .
Correct answer : 2
Q13. The rate of which electoral energy is consumed in an electric circuit is known as ...........
Correct answer : 3
Q14. The rate of flow is of greater importance in
Correct answer : 1
Q15. The rate of change of ........ is due to forces applied.
Correct answer : 3
Q16. The rate at which a fluid flows through a pipe depends on
Correct answer : 3
Q17. The radius of curvature of a convex mirror is 32 cm. Its focal length is .......... cm
Correct answer : 2
Q18. The quantity of heat required to heat a substance depend upon
Correct answer : 4
Q19. The quantities that a travelling wave carries with it is
Correct answer : 3
Q20. The purity of gem is found by
Correct answer : 1
Q21. The quality of an ideal source of energy is that it
Correct answer : 4
Q22. The property which is common to X-rays, gamma rays, IR rays, UV rays and visible light is that
Correct answer : 2
Q23. The properties of solid depend on
Correct answer : 4
Q24. The product of mass of the particle and square of its distance is
Correct answer : 3
Q25. The product of frequency and time period is equal to
Correct answer : 2
Q26. The proces of doping is associated with
Correct answer : 4
Q27. The principle of centrifugal force’ is applied to ‘the machines’ called
Correct answer : 3
Q28. The primary cell widely used in
Correct answer : 3
Q29. The power of lens is
Correct answer : 4
Q30. The power of a DC motor can be increased by
Correct answer : 2
Q31. The power of a concave lens of focal length 15cm is ..............
Correct answer : 2
Q32. The phenomenon of electromagnetic induction was discovered by ...........
Correct answer : 4
Q33. The phenomenon of electro magnetic induction is the process of
Correct answer : 2
Q34. The penetrating power of gamma rays is
Correct answer : 4
Q35. The penetrating power of X-ray is .............
Correct answer : 1
Q36. The particular temperature at which the surface tension of the liquid become zero is called.
Correct answer : 4
Q37. The particles emitted during photoelectric emission are
Correct answer : 2
Q38. The partially lighted area of a shadow on the property of the totally shaded portion is called ........... .
Correct answer : 2
Q39. The output and input voltages in a transformer are 20 V and 5 V. What is the transformer ratio?
Correct answer : 3
Q40. The part of the Universe in which sun occupies the central portion of the system holding all the heavenly bodies is called
Correct answer : 1
Q41. The output and input currents in a transformer are 10 A and 40 A respectively. The transformer ratio is ...........
Correct answer : 4
Q42. The other name of Nm is
Correct answer : 4
Q43. The oil in a wick rises up due to?
Correct answer : 3
Q44. The object which moves in straight line comes under
Correct answer : 1
Q45. The number of sound vibrations per second is called
Correct answer : 3
Q46. The number of photo electron emitted during photo electric emission depends on
Correct answer : 4
Q47. The nucleus is asliumed to be spherical’in shape, this is in accordance with ............
Correct answer : 2
Q48. The nearest galaxy to earth is
Correct answer : 1
Q49. The nuclear volume is found to be .......... number
Correct answer : 2
Q50. The muscles of a normal eye are elastic strained when the eye is focused on an object.