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← Bihar Board Class 10 PYQ

Light – Reflection and Refraction

Bihar Board Class 10 · Science · 52 past questions

  1. Q1 2026
    The angle of incidence equals the angle of reflection according to
  2. Q2 2026
    The image formed by a plane mirror is
  3. Q3 2026
    Which of the following is made in a pin hole camera ?
  4. Q4 2026
    If the angle of incidence is 45°, then the angle between the reflected ray and the normal will be
  5. Q5 2026
    The magnification of the image of the moon by a convex mirror will be
  6. Q6 2026
    The speed of light is maximum in
  7. Q7 2026
    In an optical fibre, the light undergoes
  8. Q8 2026
    Which of the following lenses is called a converging lens ?
  9. Q9 2025
    If the focal length of the lens is $f$ and power is $P$ then
  10. Q10 2025
    The light rays travel in
  11. Q11 2025
    Which type of mirror is a concave mirror ?
  12. Q12 2025
    Which of the following types of mirror is used in the headlight of a car ?
  13. Q13 2025
    The focal length of a concave mirror is
  14. Q14 2025
    Which mirror always forms an image smaller than the object ?
  15. Q15 2025
    The speed of light in air as compared to vacuum is
  16. Q16 2025
    Which phenomenon exhibited by light is demonstrated in the twinkling of stars ?
  17. Q17 2024
    The absolute refractive index of air is actually
  18. Q18 2024
    Mirror used by ENT ( Ear-Nose-throat ) doctor is
  19. Q19 2024
    Which of the following is the unit of power of lens?
  20. Q20 2024
    Which mirror is used as shaving mirror?
  21. Q21 2024
    If the image of an object formed by a concave mirror is virtual, erect and larger than the object then where…
  22. Q22 2024
    The capacity to bend rays of light is called
  23. Q23 2024
    The image obtained by a concave lens is
  24. Q24 2024
    The maximum value of magnification in a convex mirror is
  25. Q25 2024
    The radius of curvature of a concave mirror of focal length 20 cm is
  26. Q26 2023
    Which of the following lenses is called diverging lens?
  27. Q27 2023
    Which colour has maximum wavelength in visible light?
  28. Q28 2023
    A converging beam is incident on a plane mirror. The reflected beam will be
  29. Q29 2023
    The focal length of which mirror is taken as negative according to the convention of signs?
  30. Q30 2023
    Where is the object placed to form a magnified virtual image in a concave mirror ?
  31. Q31 2023
    How many laws of refraction of light are there?
  32. Q32 2023
    What is the value of refractive index of a medium ?
  33. Q33 2023
    The magnification (m) in a concave lens is equal to
  34. Q34 2023
    What is the refractive index of diamond ?
  35. Q35 2023
    A prism is bounded by how many surfaces ?
  36. Q36 2022
    Which one of the following can form a real image of an object ?
  37. Q37 2022
    The point, at which the rays coming out from a point-object after refraction through a lens meet is called
  38. Q38 2022
    The objective lens of photography camera is
  39. Q39 2022
    Which one of the following lenses would you prefer to use while reading small letters found in a dictionary ?
  40. Q40 2022
    A spherical mirror and a thin spherical lens have a focal length of - 15 cm each. The mirror and the lens are…
  41. Q41 2022
    A magnified imaginary image by a convex lens is formed when the object is placed
  42. Q42 2020
    Mirror's formula is
  43. Q43 2020
    The rays of light travel in
  44. Q44 2020
    Which of the following is the unit of power of lens ?
  45. Q45 2020
    The deviation of which colour is minimum ?
  46. Q46 2020
    How many laws are there of reflection of light ?
  47. Q47 2020
    In which of the following media is the speed of light maximum?
  48. Q48 2018
    The diameter of a circular outline of the reflecting surface of spherical mirror is called -
  49. Q49 2018
    Which one of the following is focal length of the convex mirror whose radius of curvature is 32cm?
  50. Q50 2017
    The ray of light passes through
  51. Q51 2017
    Which mirror is used as shaving mirror?
  52. Q52 2017
    The reflective surface of search light is :-