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In Young's experiment , the fringe width...

In Young's experiment , the fringe width of the fringes with light of wavelength 6000 Å is `2.0` mm . What will be the fringe width if the entire apparatus is immersed in a liquid of refractive index `1.33` ?

A

0.5mm

B

1mm

C

1.5mm

D

2mm

Text Solution

Verified by Experts

The correct Answer is:
C
Fringe width `beta = 2 mm = 2 xx 10 ^(-3) m `
`lamda = 6000 Å`
`mu = 1 . 55`
`beta . = ?`
`beta . = ( beta)/( mu)`
`= (2)/( 1.33)`
`= 1.55 mm`
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