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प्रश्न
A coin placed at the bottom of a vessel appears to be raised when water is poured in the vessel.
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उत्तर
The coin at a appears to be at B i. e. depth of coin observed is less than the actual depth at A.
The ray of light starting from A (denser) medium bends away from the normal. Due to the Refraction of light, the coin appears at B at a lower depth. Hence, in the same way, the depth of water appears to be less deep.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
Define the following term in the context of spherical mirrors:- Principal axis
Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at (a) 90°, and (b) 60°.
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
(a) When a concave mirror is used as a shaving mirror, where is the person's face in relation to the focus of mirror?
(b) State three characteristics of the image seen in part (a).
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
Define the following term in relation to concave mirror.
Pole
