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Question
Complete the ray diagram showing its emergence into the air after passing through the prism.
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Solution
RELATED QUESTIONS
Observe the following figure and answer the questions given under it:
1) How many times does refraction take place in the above figure?
2) What happens to the ray of light when it passes from air to glass?
3) What happens to the ray of light when it passes from glass to air?
4) What are the rays AB and CD in the figure called?
5) Define refraction.
The refractive index of air with respect to glass is expressed as `""_g μ_a=sin i /sin r`.
- Write down a similar expression for aμg in terms of the angles i and r.
- If angle r = 90°, what is the corresponding angle i called?
- What is the physical significance of the angle i in part (b)?
Fig. shows a ray of white light that passes through a prism and produces a spectrum.
(a) Name the phenomenon that is taking place.
(b) What colour would you see at X and Y?
(c) What radiation would you detect above X and below Y?
Name the phenomenon responsible in the following case:
Apparent bending of a stick in water
Why does a fisherman aim at the tail of fish during spearfishing?
Why is the colour red used as a sign of danger?
Name one main factor on which the direction of bending of a ray of light depends.
How will you verify the laws of refraction or how the refractive index of glass is determined in the laboratory?
