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Assertion: By roughening the surface of ...

Assertion: By roughening the surface of a glass sheet its transparency can be reduced.
Reason: Glass sheet with rough surface absorbs more light.

A

Assertion is True, Reason is True, Reason is a correct explanation for Assertion.

B

Assertion is True, Reason is True, Reason is not a correct explanation for Assertion.

C

Assertion is True, Reason is False.

D

Assertion is False, Reason is False.

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TARGET PUBLICATION-OPTICS-EXERCISE
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  3. Assertion: By roughening the surface of a glass sheet its transparency...

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  4. An experiment needs to heat a small sample to 700 K, but the only avai...

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  5. It is found that all electromagnetic signals sent from P towards Q rea...

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  6. The angle made by incident ray of light with the reflecting surface is...

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  7. There is a small air bubble at the centre of a solid glass sphere of r...

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  8. A ray of light passes through four transparent media wit refractive in...

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  10. A ray of light strikes a tansparent rectangular slab (of refractive in...

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  11. According to Cartesian sign convention, in ray optics

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  12. The power of plane mirror is .

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  13. A beam of light from a source L is incident normally on a plane mirror...

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  14. For concave mirror, if the object is at the focusn f, the image is

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  15. A spherical mirror is obtained as shown in the figure from a hollow gl...

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  16. Which of the following statements is incorrect?

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  17. A concave mirror of focal length f (in air) is immersed in water (mu=(...

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  18. An object is placed on the principal axis of a concave mirror at a dis...

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  19. An object is placed at a distance of 40 cm from concave mirror of foca...

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