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The wavelengths of violet, yellow and re...

The wavelengths of violet, yellow and red light are `lambda_(v), lambda_(y)` and `lambda_(r)` respectively, then …………

A

` lambda_(v) gt lambda_(y) gt lambda_(r)`

B

`lambda_(v) lt lambda_(y) lt lambda_(r)`

C

`lambda_(y) lt lambda_(v) lt lambda_(r)`

D

`lambda_(y) lt lambda_(r) lt lambda_(v)`

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A, B, D
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KUMAR PRAKASHAN-THE HUMAN EYE AND THE COLOURFUL WORLD-OBJECTIVE QUESTIONS AND ANSWERS (Choose the correct option)
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  2. How many surfaces does a triangular prism have ?

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  3. The wavelengths of violet, yellow and red light are lambda(v), lambda(...

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  4. For normal vision, the far point is at…………. distance.

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  5. For normal vision, the near point is ............

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  6. Which phenomenon can explain the advance sunrise and the delayed sunse...

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  7. Which of the following phenomena cannot be explained by scattering of ...

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  8. The base of an equilateral triangle ABC is BC. When it is arranged in ...

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  9. The Sun appears white in afternoon. The reason is ..........

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  10. Sea water at more depth appears blue. The reason is …….....

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  11. When the ciliary muscles are relaxed, the eye lens becomes ......... a...

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  12. When the ciliary muscles contract, the eye lens becomes ......... and ...

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  13. The rainbow on the moon …

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  14. In dispersion of white light due to a triangular glass prism, the devi...

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  15. Which lens from the following, should a person suffering from near-sig...

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  16. Which lens is used by a person suffering from far-sightedness?

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  17. Which of the following is true for near sightedness?

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  18. Which of the following is true for far- sightedness?

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  19. Where is the image formed in the eye of a person suffering from far si...

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  20. A person has a defect of eye vision. His near point is 40 cm. It means...

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