Question

The angle of a glass bi-prism is 1 and its refractive index u = 1.5. If the source slit is 10 cm away from the bi-prism, calculate the separation between the coherent sources formed by it.
A. 1.34 x 10^-2m
B. 1.74 x 10^-3 m
C. 2.14 x 10^-4 m
D. 2.74 x 10^-5 m​

Answer 1

Answer:

1.34×10^-2bth7gf7ivfgjg

Answer 2

Given :

The angle of glass bi-prism, $\alpha = 1^{o}$ $= \frac{\pi }{180}$ radian

Refractive index, μ = 1.5

Distance between slit and bi-prism, a = 10 cm = 0.1 m

To Find :

The separation between the coherent sources, d =?

Solution :

We know that,

The separation between the coherent sources, d = 2a(μ - 1)α

$d$ = 2 × 0.1 × ( 1.5 - 1 ) × $\frac{\pi }{180}$

$d =$ 1.74 × $10^{-3}$ m

So, option (B) is right.