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Q1. Lenz law is in accordance with the law of ...........
Correct answer : 2
Q2. Lenz’s law is a consequence of the law of conservation of
Correct answer : 2
Q3. Latent heat of vaporization of water boiling under normal pressure is
Correct answer : 2
Q4. Large rain drops fall under gravity, when drops undergo - velocity
Correct answer : 4
Q5. Kinetic energy of a body in motion equals the product of half its mass and the square of its
Correct answer : 2
Q6. Johannes Kepler proposed
Correct answer : 4
Q7. IR are used for
Correct answer : 3
Q8. It two stones of masses 1 kg and 5 kg are dropped from a height
Correct answer : 3
Q9. Inside the coolidge tube, the tungsten filaments coated with ...........
Correct answer : 4
Q10. IR and UV rays obey
Correct answer : 3
Q11. Ink sticks to paper while writing because of
Correct answer : 1
Q12. Industrial electric appliances are designed to operate at ...........
Correct answer : 4
Q13. In which transformer the input is equal to output power?
Correct answer : 4
Q14. In which transformer, the number of turns in the secondary less than in the primary coil?
Correct answer : 3
Q15. In which scattering the scattered wave length is equal to the incident wavelength?
Correct answer : 4
Q16. In which reaction, reversible and irreversible reactions are possible?
Correct answer : 2
Q17. In which reaction enormous amount of energy is released?
Correct answer : 2
Q18. In which orbits an electron can revolve in?
Correct answer : 3
Q19. In which of the following, the strength of magnetic field produced by a current carrying solenoid does not depend upon
Correct answer : 2
Q20. In which of the following the velocity of sound is maximum?
Correct answer : 4
Q21. In which of the following is the sources of energy by the fusion of helium nuclei.
Correct answer : 4
Q22. In which materials X- rays produce fluorescence?
Correct answer : 4
Q23. In which material objects can be seen clearly?
Correct answer : 1
Q24. In which fields x- rays are used?
Correct answer : 4
Q25. In which layer ozone is present?
Correct answer : 1
Q26. In which elements artificial radioactivity exhibits?
Correct answer : 3
Q27. In which elements natural radioactivity occur?
Correct answer : 1
Q28. In which direction the l3-particles are deflected ..........
Correct answer : 3
Q29. In which direction, the induced current acts?
Correct answer : 2
Q30. In which direction a ray of light bends while emerging out of a prism?
Correct answer : 2
Q31. In which device, the fission reaction takes place in perfectly controlled manner?
Correct answer : 3
Q32. In which device an AC voltage of same value is changed into an AC voltage of different value?
Correct answer : 2
Q33. In which defect human eye cannot see distant objects distinctly?
Correct answer : 2
Q34. In which atoms are arranged in a regular, repeated and periodic pattern?
Correct answer : 4
Q35. In what way the three states of matter differ?
Correct answer : 2
Q36. In what form the coil is attached to specially treated paper in loud speaker ?
Correct answer : 3
Q37. In what colour the sun near horizon appears?
Correct answer : 2
Q38. In what basis the three states of matter is explained?
Correct answer : 2
Q39. In what angle the anode is inclined in a coolidge tube?
Correct answer : 1
Q40. In transverse waves the particles of medium oscillates
Correct answer : 1
Q41. In transmission of electric power which instrument is used?
Correct answer : 4
Q42. In the EM spectrum, light waves occupy ........... of the spectrum.
Correct answer : 3
Q43. In the distance between two objects is doubled, the force of attraction between them will be
Correct answer : 2
Q44. In the controlled chain reaction, the number of fissions produced per second is ............
Correct answer : 2
Q45. In the case of liquids, the inter-atomic force is
Correct answer : 1
Q46. In the case of projectile motion, the object should be thrown with
Correct answer : 1
Q47. In solids, the inter-atomic force is’
Correct answer : 1
Q48. In the case of liquids, how does the liquid drop held together?
Correct answer : 1
Q49. In solids, the cohesive force is
Correct answer : 2
Q50. In refraction through a glass slab, the .............. ray and ............. ray are parallel to each other