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The secondary rainbow is due to interna...

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

A

one

B

two

C

three

D

four

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The primary rainbow is due to _______ internal reflection inside droplet and two refractions.

The primary rainbow is due to ____ total internal reflection inside droplet and two refractions.

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What is total internal reflection?

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Which light rays undergoes two internal reflection inside a raindrop, which of the rainbow is formed?

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

Answer the following questions Explain the terms total internal reflection and critical angle.

Name some applications based on Total Internal Reflection.

TARGET PUBLICATION-OPTICS-EXERCISE
  1. The average angle of inclination of the primary rainbow with the axis ...

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

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

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

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  5. Pick the correct statement from the following.

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

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  7. What causes chromatic aberration?

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  8. Achromatic combination can not be achieved by using

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  9. An achromatic combination of lenss produce.

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

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

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

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  13. The least distance of distinc vision for a young adult with normal vis...

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  14. A norml eye is unable to see objects at a distance less than distance ...

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  15. The clearity of image formed on retina of eye depends on the

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  16. A convex lens of the short focal length held very close to the eye, to...

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  17. The magnifying power of simple microscope is

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  18. A perosn using a lens as a simple microscope sees an

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  19. The magnifying power of simple microscope, when image is formed at DDV...

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  20. Magnification of simple microscope when image is at infinity is given ...

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