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Refractive index of diamond is 2. Speed ...

Refractive index of diamond is 2. Speed of ligh in it is ...... Cm`//`s.

A

`6xx10^(10)`

B

`3.0 xx 10^(10)`

C

`2 xx 10^(10)`

D

`1.5 xx 10^(10)`

Text Solution

Verified by Experts

The correct Answer is:
A, D
`mu =("Speed of light c")/("Speed in medium v")`
`therefore 2.0 =(3xx10^(10))/(v)`
`therefore v=3/2xx10^(10)`
`therefore v=1.5xx10^(10)" "cm//s`
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KUMAR PRAKASHAN-RAY OPTICS AND OPTICAL INSTRUMENTS-SECTION-D (MULTIPLE CHOICE QUESTIONS (MCQs))(MCQs FROM .DARPAN. BASED ON TEXTBOOK)(REFRACTION)
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  2. Velocity of light in diamond, glass and water decreases in the followi...

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  3. The refractive indices of water and glass are 1.2 and 1.5 respectively...

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  4. A sound wave travels from air to water. The angle of incidence is alph...

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  5. A complete transparent object is invisible ir free space, then what is...

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  6. Refractive index of diamond is 2. Speed of ligh in it is ...... Cm//s.

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  7. A ray of light having intensity 0.5 (W)/(m^2) is incident perpendicula...

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  8. A ray of light is incident on liquid surface such that reflected and r...

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  9. Light ray travels from air to glass and air to water, as shown in figu...

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  10. An observer stand on the bank of lake finds fish at the depth 12 cm in...

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  11. A water tank is partially fill upto 2 m height. As shown in figure, 0....

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  12. A glass slab having refractive index n and thickness d is placed on th...

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  13. A mark at the bottom of a liquid beaker appears to rise by 0.1 m. If t...

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  14. A swimmer is diving in a swimming pool vertically down with a velocity...

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  15. A ray of light enters in air from glass. What wi be deviation angle if...

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  16. When an object in rarer medium is viewed from denser medium, then that...

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  17. A vessel of depth d is half filled with liquid of refractive index mu1...

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  18. A narrow beam of light is incident on a glass plate of refractive inde...

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  19. A bird views a fish at 3 m depth in water. Real depth of fish is ........

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  20. An object viewed by a person in water is at 3 m height in air, then re...

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