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