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Chapter 5: Q33E (page 1182)

How far must the mirror M2 (see Fig. 35.19) of the Michelson interferometer be moved so that 1800 fringes of He-Ne laser light 位=633move across a line in the field of view?

Short Answer

Expert verified

We have to move mirror by this distance5.70脳10-4m .

Step by step solution

01

Given information

We are given m = 1800,位air=633nm=633脳10-9

02

Calculation

Since,

y=m位2

Whereas y is the mirror move distance.

Hence, we will substitute the given values

y=1800脳633脳10-92y=5.70脳10-4m

Hence, we have to move mirror by this distance5.70脳10-4m .

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