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Wave length of light in denser mediumis ...

Wave length of light in denser mediumis `4000Å`, it is grazing into a rarer medium. If critical angle for the pairof mediam is `sin^(-1)(2/3)` then the wave length of light in rarer medium is

A

4000Å

B

2666Å

C

8000Å

D

6000Å

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-GEOMETRICAL OPTICS-ADDITIONAL PRACTICE EXERCISE (LEVEL-I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  11. A double convex lens of focal length 30 cm is made of glass. When it ...

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  14. A double convex lens is made of glass which has refractive inded 1.55 ...

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  17. A ray of light is incident at 50^(@) on the middle of one of two mirr...

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  18. A 2.0 cm high object is placed on the principal axis of a concave mirr...

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  19. A concave mirror forms a real image three times larger than the object...

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  20. An object is placed in front of a convex mirror at a distance of 50cm....

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