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प्रश्न
What is atmospheric reflection? Explain with the help of a labelled diagram that the position of a star as seen by us is not its true position.
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उत्तर
Refraction of light by earth’s atmosphere is called at,ospheric refraction
Since the atmosphere bends the starlight towards the normal, the apparent position of the star is slightly different from actual position.
The star appears slightly higher from actual position when viewed near horizon.
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संबंधित प्रश्न
The image of an object formed by a plane mirror is:
(a) virtual
(b) real
(c) diminished
(d) upside-down
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 more quickly through water than through glass.
Which is optically denser : water or glass?
Light travels at a lower speed in water than in air.
Image is formed by a mirror due to refraction of light.
A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.
A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray will differ from that of the incident ray: Speed, intensity, frequency, wavelength?
Light bends as it passes from one medium to another. What is this phenomenon called?
The bending of light as it passes from one medium to another is called ______.
Which is optically denser out of the two medium M1& M2 having the refractive indices = 1.71 and 1.36 respectively?
