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Ray optics is valid, when chracteristic ...

Ray optics is valid, when chracteristic dimension are

A

much smaller than the wavelength of light.

B

much larger than the wavelength of light.

C

of the same order as that of wavelength of light.

D

of the order of millimetre.

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. The photoelectric effect indicates that

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  2. Choose the correct option.

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  3. Ray optics is valid, when chracteristic dimension are

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  4. According to Cartesian sign conventions all distances are measured fro...

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  5. According to new Cartesian sign convention, all distance measured

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  6. A beam of light corresponds to rays of light coming from real point o...

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

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  8. A ray of light is reflected at an angle of 15^@. If the angle of incid...

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  9. From the following ray diagram theta and theta1 are

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  10. When a ray of light passes from air to denser medium, its speed is red...

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  11. A ray of light is incident on the surface of separatio of a medium wit...

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  12. Monochromatic light of wavelength 6000 overset@ (A) travels through a ...

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  13. When an object is placed between two plane mirrors facing each other i...

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  14. Two mirrors are kept inclined to each other at an angle of 60^@ and an...

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  15. To get three images of a single object placed symmetrically between tw...

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  16. Choose the CORRECT statement.

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  17. The geometrical centre of surface of spherical mirror is called its

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  18. The principle axis of spherical mirror passes through

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  19. A ray of light falls on a mirror normally. What are the values of angl...

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  20. For the spherical mirros, the relation between forcal length (f) and r...

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