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Light takes t(1) second to travel a dist...

Light takes `t_(1)` second to travel a distance x cm in vacuum and the same light takes `t_(2)` second to travel 10x cm in medium. The critical angle for the corresponding medium is

A

`sin^(-1)[(10t_(2))/t_(1)]`

B

`sin^(-1)[(t_(2))/(10t_(1))]`

C

`sin^(-1)[(10t_(1))/(t_(2))]`

D

`sin^(-1)[(t_(1))/(10t_(2))]`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-RAY OPTICS AND OPTICAL INSTRUMENTS-EXERCISE
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  6. Three lenses in contact have a combined focal length of 12 cm. When th...

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  7. The radii of curvatures of a convex lens are 0.04 m and 0.04m. Its ref...

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  8. A convex glass lens (mu(g) = 1.5) has a focal length of 8 cm when plac...

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  9. A convex mirror forms an image one-fourth the size of the object. If o...

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  11. While a moving picture is being screened, a boy introduced a glass sla...

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  13. A lens made of material of Refractive index mu(2) is surrounded by a m...

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  14. A light ray is incident normally on one of the refracting faces of a p...

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  15. If a light ray incidents normally on one of the faces of the prism of ...

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  16. A ray of light is incident on one of the faces of the angle prism with...

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  17. A prism of refractive index sqrt2 has refractive angle 60^@. In the or...

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  18. The least angle of deviation for a glass prism is equal to its refract...

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  19. A light ray of angles of incidence 40^(@) emerged from the prism in mi...

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  20. The angle of minimum deviation for a 75^(@) prism of dense glass is fo...

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