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Q1. The diameter of a car tyre is 0.8 m moving with an angular velocity 20 rad S–1 has a linear velocity
Correct answer : 2
Q2. The density of nucleus is very high. This shows that nuclear matter is in ............
Correct answer : 3
Q3. The current that flows in the nerves of the, human body is of the order of
Correct answer : 3
Q4. The critical angle of incidence is 30 degree when light travels from diamond to air. What is the refractive index of a diamond?
Correct answer : 2
Q5. The critical angle of diamond is 24.4 degree. Calculate its refractive index. [ Sin 24.4 degree = 0.41]
Correct answer : 3
Q6. The critical angle for a medium is 60 degree, what is the refractive index of medium?
Correct answer : 3
Q7. The commonly used safety fuse wire is made of
Correct answer : 3
Q8. The coolidge tube is evacuated up to ...........
Correct answer : 3
Q9. The common unit of measuring calorific ‘value is
Correct answer : 2
Q10. The colours that we see around us are the colours
Correct answer : 3
Q11. The closest position of the planet from the sun is
Correct answer : 2
Q12. The change of solids directly into vapour is known as
Correct answer : 3
Q13. The change in magnetic flux of both coils A and B is same. If the time taken is more in coil A, the emf induced in A is the emf induced in B.
Correct answer : 1
Q14. The change in magnetic flux linked with the coils A and B is same if the time taken to bring this change is more for the coil A, the emf induced in A is the emf induced in B
Correct answer : 2
Q15. The change in angular velocity of a bicycle is 20 rad. S–1 in 5S. What is the angular acceleration of the bicycle?
Correct answer : 3
Q16. The centripetal force required for a car to go round a circular curve depends on its
Correct answer : 2
Q17. The boiling point of water inside the pressure cookers
Correct answer : 3
Q18. The boiling point of alcohol is
Correct answer : 4
Q19. The body which does not gain its original shape after the removal of deforming force is called
Correct answer : 4
Q20. The blue colour of the sky is due to scattering of
Correct answer : 1
Q21. The biggest fragments of rocks or metals which are not completely burnt and manage to hit the earth are
Correct answer : 3
Q22. The bending of light ray due to change in its speed is
Correct answer : 3
Q23. The atoms of all elements are made up of which atom according to Prout’s model?
Correct answer : 2
Q24. The atomic weight of elements were
Correct answer : 3
Q25. The apparent random wavering of objects is due to
Correct answer : 2
Q26. The angular velocity of a particle undergoing circular motion of radius 5 cm completes one revolution in 0.1 sec is .......
Correct answer : 3
Q27. The angle of refraction is
Correct answer : 4
Q28. The angular acceleration is
Correct answer : 2
Q29. The angle of incidence of a light on a plane mirror is q, the angle between the incident and reflected ray is 70 degree. What is the value of q?
Correct answer : 2
Q30. The angle of elevation of the sun to see the primary rainbow above ...........
Correct answer : 1
Q31. The angle of contact for pure water and clear glass is
Correct answer : 4
Q32. The angle between the two lateral surface of a prism is called
Correct answer : 1
Q33. The angle between the incident and emergent ray is called
Correct answer : 3
Q34. The Andromeda galaxy is at a distance of ........ light years from each.
Correct answer : 3
Q35. The ampere - second stands for the unit of
Correct answer : 4
Q36. The amount of work done against friction to slide a box in a straight line across a uniform, horizontal floor depends most on the [w = f × d]
Correct answer : 2
Q37. The amount of heat required to raise the temperature of a unit of a material by 1º C is called specific heat capacity.
Correct answer : 3
Q38. The amount of heat required to change a unit mass of solid into liquid without changing its temperature is
Correct answer : 2
Q39. The amount of heat generated by current of 0.5 A flowing through a coil of resistance 6 ohm in one minute is
Correct answer : 2
Q40. The amount of heat energy absorbed by a substance is denoted as
Correct answer : 1
Q41. The amount of ....... in the old articles describes its age
Correct answer : 1
Q42. The aircraft experiences an upward force because of
Correct answer : 2
Q43. The air resistance on a falling body depends on
Correct answer : 4
Q44. The acceleration of an object on free fall is independent of its
Correct answer : 1
Q45. The ability of. the eye lens to adjust its focal length is called
Correct answer : 2
Q46. Television occupies frequency bands on either side of ......... region.
Correct answer : 2
Q47. Surface tension of the oil is ......... that of water.
Correct answer : 1
Q48. Sun is a natural source of
Correct answer : 2
Q49. Sun appears to be risen before the actual sunrise how?