Correct option is C
The Correct Answer is: (c) When light travels from a denser medium to rarer medium, it bends towards the normal.
Explanation:
When light travels from a denser medium to a rarer medium, it bends away from the normal. This occurs because light travels faster in the rarer medium, causing the change in direction as per the laws of refraction.
According to Snell’s Law:
Where:
- is the refractive index,
- I is the angle of incidence,
- r is the angle of refraction.
In the transition from denser to rarer medium, the angle of refraction is greater than the angle of incidence, meaning the ray bends away from the normal.
Information Booster:
• Refraction occurs due to a change in the speed of light in different media.
• The incident ray, refracted ray, and normal always lie in the same plane.
• The refractive index (μ) of a medium is defined as the ratio of the speed of light in vacuum (c) to that in the medium (v).
• When light enters a denser medium, it slows down and bends toward the normal.
• When light enters a rarer medium, it speeds up and bends away from the normal.
• Refraction occurs due to a change in the speed of light in different media.
• The incident ray, refracted ray, and normal always lie in the same plane.
• The refractive index (μ) of a medium is defined as the ratio of the speed of light in vacuum (c) to that in the medium (v).
• When light enters a denser medium, it slows down and bends toward the normal.
• When light enters a rarer medium, it speeds up and bends away from the normal.
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