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प्रश्न
Which phenomenon of light makes the water to appear shallower than it really is?
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उत्तर
Refraction of light causes the water to appear shallower than it really is.
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संबंधित प्रश्न
Write the word AMBULANCE as it would appear when reflected in a plane mirror. Why is it sometimes written in this way (as its mirror image) on the front of an ambulance?
State the uses of plane mirrors.
The image of an object formed by a plane mirror is:
(a) virtual
(b) real
(c) diminished
(d) upside-down
As light rays pass from water into glass, are they refracted towards the normal or away from the normal?
Show the lateral displacement of the ray on the diagram.
State two factors on which the lateral displacement of the emergent ray depends.
A ray of light passes from a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of:
(a) 0°
(b) 45°
(c) 90°
(d) 120°
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of incidence?
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of refraction?
Light travels at a lower speed in water than in air.
The diagram (figure) given below shows two parallel rays 1 and 2 incident on (a) a concave mirror, (b) a convex mirror. Draw the reflected rays and mark the focus by the symbol F.
Fill in the blank and Explain the completed sentences.
The change in ______ of light rays while going from one medium to another is called refraction.
We can see the sun even when it is little below the horizon because of ______.
The incident rays and refracting rays are on opposite sides of the normal.
Write scientific reason.
The bottom of a pond appears raised.
What is refractive index?
A ray of light traveling in medium 1 strikes and travels into another transparent medium 2. If the speed of light is greater in medium 1, the ray will ______.
Light is refracted or bent while going from one medium to another because of its ______ changes.
How do twinkling stars occur? (or) what is the cause of the twinkling of stars?
