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Q1. When the freely falling body descends down the velocity of the body
Correct answer : 3
Q2. When the length of wire is halved what’ will be the resistance?
Correct answer : 3
Q3. When the coin is dropped, the force acting on it is
Correct answer : 1
Q4. When the electrons are moving in the discrete and permitted orbit they
Correct answer : 1
Q5. When one neutron disintegrates, it produces
Correct answer : 1
Q6. When objects at different distances are seen by the eye, which of the following remain constant?
Correct answer : 3
Q7. When meteors enter earth’s atmosphere, they get burnt due to
Correct answer : 3
Q8. When more than one resistors are in series, which quantity remains the same?
Correct answer : 1
Q9. When light incidents on a highly polished surface most of the light is
Correct answer : 1
Q10. When magenta, yellow and cyan are added which colour is obtained.
Correct answer : 4
Q11. When it is possible to observe total internal reflection?
Correct answer : 4
Q12. When light goes from rarer to denser medium
Correct answer : 1
Q13. When is the movement of electrons occurs?
Correct answer : 2
Q14. When is the mechanical force zero?
Correct answer : 3
Q15. When is a prism said to be in minimum deviation?
Correct answer : 4
Q16. When intensity of the incident radiation increases, what happens to the photoelectric current?
Correct answer : 1
Q17. When impurity is added then the melting point of ice
Correct answer : 2
Q18. When electrons revolve in the permissible non-radiating orbit, they
Correct answer : 2
Q19. When earth rotates about its own axis, the velocity of bodies near the equator is ......... that of at the poles
Correct answer : 2
Q20. When current passes through a straight conductor, the magnetic field lines around it are in the form of with the conductor at the centre
Correct answer : 1
Q21. When current in a conductor is switched off, the magnetic needle placed near the conductor
Correct answer : 4
Q22. When current in a conductor is switched off, the magnetic needle placed near its conductor .............
Correct answer : 3
Q23. When atom bomb explodes a large amount of ..........
Correct answer : 2
Q24. When an object undergoes acceleration
Correct answer : 3
Q25. When an object starts to fall freely which statemtnet is correct about it?
Correct answer : 4
Q26. When an object reflects all the colours of white light, how does the object appear?
Correct answer : 4
Q27. When an object of 3 cm height is placed in front of a mirror, the magnification produced by the mirror is 8, what is the size of the image formed by the mirror?
Correct answer : 2
Q28. When an object is thrown up, what is the value of g?
Correct answer : 3
Q29. When an object is placed in front of a thick glass mirror how many images are formed?
Correct answer : 3
Q30. When an object is placed between pole and principal focus of a concave mirror, where the image is formed?
Correct answer : 2
Q31. When an object is placed at the focus of a concave mirror, the image formed by the concave mirror is not
Correct answer : 3
Q32. When an object absorbs all the colours of white light the object appears.
Correct answer : 1
Q33. When an object 2 cm high is placed in front of a mirror, the magnification produced by the mirror is 4. What is the size of the image?
Correct answer : 3
Q34. When an insect Walks on the surface of water, the force of surface tension acts
Correct answer : 1
Q35. When an a - particle is emitted the atomic number decreases by
Correct answer : 2
Q36. When an external force of sufficient magnitude is applied on a body of some mass, the body acquires
Correct answer : 3
Q37. When aluminium is bombarded by a-particle which isotope is produced?
Correct answer : 4
Q38. When a wire carries an electric current in it its temperature rises due to conversion of
Correct answer : 3
Q39. When a stone is tied to a string and rotated in a circular path then the tension in the string provides
Correct answer : 2
Q40. When a steel rod is used in the place of soft iron rod in an electric bell .............
Correct answer : 3
Q41. When a solid is heated it changes into liquid is called
Correct answer : 2
Q42. When a ray or light enters a glass slab from air
Correct answer : 2
Q43. When a particle is moving in a circular path, its acceleration is
Correct answer : 1
Q44. When a painting brush is dipped in water, its hairs
Correct answer : 3
Q45. When a nucleus emits g- rays, what is the change in atomic and mass numbers?
Correct answer : 4
Q46. When a neutron converts itself into a proton which is obtained?
Correct answer : 4
Q47. When a neutral metal sphere is charged by contact with a positively charged glass rod. the sphere
Correct answer : 1
Q48. When a liquid evaporates, its temperature
Correct answer : 3
Q49. When a light of suitable frequency falls on a metal surface ................. are ejected from the metal
Correct answer : 2
Q50. When a light goes from glass (mg = 3/2) to water (mw = 4/3), what is the refractive index of water with respect to glass?