At the time of sunrise the sun appears ....

At the time of sunrise the sun appears ........ in colour.

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We see Sunrise ......

Interference phenomenon appears in ......

Give scientific reasons for the following statements: The clear sky appears blue in colour.

If according to Indian almanac real sunrise of a day is 6:32 hour, then at the horizon Sun will appear at ............

The sun is seen two minutes earlier than the actual sunrise and the sun is seen for two minutes more even after the actual sunset. Why?

The radiation emitted by a star A is 10,000 times that of the Sun. If the surface temperature of the Sun and the star are 6000 K and 2000 K respectively, the ratio of the radius of star A and the Sun is . . . .. . . .

Due to which effect does the smoke emitted by the combustion of the engine oil in a motorcycle sometimes appears blue in colour?

The largest and the shortest distance of the earth from the sun are r_1 and r_2 . Its distance from the sun when it is at pependicular to the major-axis of the orbit drawn from the sun is .........

KUMAR PRAKASHAN-THE HUMAN EYE AND THE COLOURFUL WORLD-OBJECTIVE QUESTIONS AND ANSWERS(Fill in the blanks)

The type of image formed by the eye lens is ......... and .......
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A triangular glass prism has ......... triangular bases and ......... ...
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Light enters our eye through the .......
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A person suffering from far-sightedness or hypermetropia cannot see cl...
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A ......... corrective lens is used to rectify near-sightedness.
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An old person suffering from near-sightedness and a far-sightedness us...
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While passing through the prism the light ray travelling from air to g...
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In a glass prism ......... light propagates with maximum speed.
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At night stars are seen slightly at a higher position than their actua...
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For a light ray passing through the prism, the angle between the incid...
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At the time of sunrise the sun appears ........ in colour.
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The fine particles in air scatter ......... light more strongly.
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........ light, while passing through a prism, does not disperse.
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Stars behave like ........ sources of light and planets behave like .....
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Danger signals are red in colour because red light is ..........
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In the spectrum of white light, ……….. and ........ colours seen at the...
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The diameter of the human eyeball is approximately ..... . cm.
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The distance between the eye lens and the retina is known as the ........
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In the normal situation in the relaxed position of the ciliary muscles...
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At night as we move up in the atmosphere of the earth, the refractive ...
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