Physics
When a ray of light from air enters a denser medium, it:
- bends away from the normal
- bends towards the normal
- goes undeviated
- is reflected back
Refraction Plane Surfaces
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Answer
bends towards the normal
Reason — When a ray of light from air enters a denser medium, it bends towards the normal due to the change in speed. This phenomenon is known as refraction. This bending towards the normal occurs because the speed of light is slower in the denser medium. The change in speed causes the light wavefront to change direction, resulting in the bending of the light ray towards the normal.
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Related Questions
In the diagram shown below which one of the following statements is true?
- C is incident ray and A is reflected ray
- A is incident ray and D is refracted ray
- A incident ray and B is refracted ray
- B is incident ray and C is refracted ray
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incidence is:
- 0°
- 45°
- 60°
- 90°
The speed of light is maximum in :
- air
- water
- glass
- diamond
The incorrect statement among the following is:
- When a ray of light gets refracted from a denser to a rarer medium, the speed of light decreases.
- The frequency of light does not change on refraction.
- The speed of light V in a medium is related to its wavelength λ and frequency f as V = fλ
- The incident ray, the refracted ray and the normal at the point of incidence all lie in one plane.