A triangular glass prism has ......... t...

A triangular glass prism has ......... triangular bases and ......... rectangular surfaces.

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In a glass prism ......... light propagates with maximum speed.

A triangular plate has two cavities , one square and one rectangular as shown in figure . The plate is heated.

What is a triangular glass prism?

In dispersion of white light due to a triangular glass prism, the deviation of red colour is less compared to violet colour. The reason …

A combination of two prisms, one of flint and other of crown glass produces dispersion without deviation. The angle of flint glass prism is 15^@ . Calculate the angle of crown glass prism and angular separation of red and violet rays on emergence from the spectroscope. ( mu for crown glass = 1.52, mu for flint glass = 1.65, omega for crown glass = 0.02, omega for flint glass = 0.03 ).

The three planes determine a rectangular parallelopiped which has _____ of rectangular faces.

Derive i+e=A+ delta for a triangular glass prism.

In the above figure a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum XY on a screen. State the colour seen at (i) X and (ii) Y.

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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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