Light Refraction Multiple Choice Questions with Answers – PDF Download

MCQ 1: The quantity which does not changes during refraction is:

1. direction
2. speed
3. frequency
4. wavelength

MCQ 2: The refractive index of a medium is:

1. Speed of light in air to speed of light in vacuum
2. Speed of light in vacuum to speed of light in air
3. focal length to object distance
4. speed of light in the medium x speed of light in the air

MCQ 3: The speed of light in water is:

1. 3.0 x 10⁸
2. 2.3 x 10⁸
3. 2.0 x 10⁸
4. 1.2 x 10⁸

MCQ 4: The bending of light as it passes from one medium to another is called:

1. reflection
2. diffraction
3. refraction
4. deflection

MCQ 5: The ratio of sin (x°) of the angle of incidence to sin (x°) of the angle of refraction is:

1. Gravitational law
2. Reflection law
3. refraction law
4. Snell's law