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Ray Optics and Optical Instruments — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsRay Optics and Optical Instruments1 Mark
MCQ

If the light moving in a straight line bends by a small but fixed angle, it may be a case of:

  • A
    Reflection.
  • B
    Refraction.
  • C
    Diffraction.
  • D
    Dispersion.
✓

Answer

  1. Reflection.
  2. Refraction.

Explanation:

When the light strikes on a surface nearly parallel to it, it then bends by a small and fixed angle after reflection. Also, when the light travels from one medium to another with slight differences in their refractive indices, it bends by a small angle. Thus, the bending of light by a small but fixed angle can be the case of either reflection or refraction.

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