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प्रश्न
A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.
उत्तर
We know that glass is a denser medium and air is a rarer medium. When a ray of light travels from a denser medium to a rarer medium, it bends away from the normal. So, the ray will bend away from the normal in the given case.
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संबंधित प्रश्न
If a ray of light goes form a denser medium to a rarer medium, will it bend towards the normal or away from the normal?
Light travels at a lower speed in water than in air.
What is the cause of refraction of light when it passes from one medium to another?
Due to _______ pencil looks bent in water, in the given experiment.
State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
Assertion and reasoning type
- Assertion: If the refractive index of the medium is high (denser medium) the velocity of the light in that medium will be small
- Reason: Refractive index of the medium is inversely proportional to the velocity of the light
In the above diagram light is travelling through different media. It is noted by a scientist that ∠1= ∠3 = ∠4 but ∠2 < ∠1. Which of the following statement would be correct?
Light travels fastest in a vacuum. Why?
Assertion: The air bubble shines in water.
Reason: Air bubble shines due to the refraction of light.
Why a pencil partly immersed in water appears to be bent at the water surface.
