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In a Fresnel biprism experiment, the two...

In a Fresnel biprism experiment, the two positions of lens give separation between the slits as 16cm and 9cm respectively. What is the actual distance of separation?

A

12 cm

B

12.5 cm

C

13 cm

D

14 cm

Text Solution

Verified by Experts

The correct Answer is:
A
In Fresnel biprism experiment, the actual distance of separation between the two slits,
`d=sqrt(d_(1)d_(2))=sqrt(16xx9)=12cm`
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