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The velocity of light in vacuum is 3 xx ...

The velocity of light in vacuum is `3 xx 10^8 m//s`. Therefore the velocity of light in m/s in a medium of R.I. 1.25 is

A

`3.75 xx 10^8`

B

`4.25 xx 10^8`

C

`1.75 xx 10^8`

D

`2.4 xx 10^8`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • The velocity of sound in vacuum is __ m s^(-1)

    A
    `332 `
    B
    `330`
    C
    `3 xx 10^8`
    D
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    A
    `1.5xxC`
    B
    `C`
    C
    `(C )/(15)`
    D
    Can have any velocity

  • The velocity of sound in vacuum is- m s^(-1) . (

    A
    `332`
    B
    `330`
    C
    `3 xx 108`
    D
    Zero

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