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If c is the velocity of light in free sp...

If c is the velocity of light in free space, the time taken by light to travel a distance x in a medium refractive index `mu` is

A

`(x)/(c)`

B

`(mux)/(c)`

C

`(x)/(muc)`

D

`(c)/(mux)`

Text Solution

Verified by Experts

The correct Answer is:
B
Velocity of light in a medium `v = c/mu`
We knows time taken `t = x/v`
`rArr r = (x)/(c//mu)`
`rArr t = (mux)/(c)`
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Knowledge Check

  • If c is the velocity of light in free space, then the time taken by light to travel a distance x in a medium refractive index mu is

    A
    `(x)/(2)`
    B
    `(mux)//(c )`
    C
    `(x)//(muc)`
    D
    `(c )//(mux)`

  • Light travel through a glass place of thickness t and refractive index 'n'. If c is the velocity of light in vacuum, then the time taken by light to travel the thickness of the plate will be

    A
    (a) `nt//c`
    B
    (b) `t//nc`
    C
    (c) `tc//n`
    D
    (d) `c//nt`

  • Light travels through a glass plate of thickness t, having refractive index mu . If c is the velocity of light in vaccum, then the time taken by light to travel this thicness of glass is

    A
    `mutc `
    B
    `(mut)/(c)`
    C
    `(t)/(muc)`
    D
    `(tc)/(mu)`

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