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Mirage' is a phenomenon due to...

Mirage' is a phenomenon due to

A

reflection of light.

B

refractin of light.

C

total internal reflection of light.

D

diffraction of light.

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TARGET PUBLICATION-OPTICS-EXERCISE
  1. The dispersive power (omega) of the material of prism is given by

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  2. The refractive index of the prism for violet colour is 1.7 and that fo...

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  3. Mirage' is a phenomenon due to

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  4. The rainbow is formed due to

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  5. The complete circle of rainbow can be seen when

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  6. To observe any rainbow the altitude of sun or the angle made by the su...

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  7. The primary rainbow is due to internal reflection inside droplet and ...

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  8. Angular width of primary rainbow is

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  9. The average angle of inclination of the primary rainbow with the axis ...

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  10. In case of secondary rainbow, colour is at the top.

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  11. The secondary rainbow is due to internal reflection inside droplet.

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  12. The straight line joining the sun and the observer along which centre ...

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  13. Pick the correct statement from the following.

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  14. Rays of different colours fail to converge to a point after passing th...

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  15. What causes chromatic aberration?

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  16. Achromatic combination can not be achieved by using

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  17. An achromatic combination of lenss produce.

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  18. In presence of aberration, circular image is formed of a point.

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  19. Spherical aberration of a convex and a concave lens respectively is

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  20. An optical instrument , in general, extends our range of vision by

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