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Figure shows the interference pattern ob...

Figure shows the interference pattern obtained ina double-slit experiment using light of wavelength 600 m. 1, 2, 3, 4 and 5 are maked on fiv fringes.

Which fringe result from a phase difference of `4 pi` between the light waves incident from the two slits?

A

2

B

3

C

4

D

5

Text Solution

Verified by Experts

The correct Answer is:
C
At central bright fringe the waves from slits are in phase and following bright fringes having a difference of `2pi.4pi=2xx2piimplies2^(nd)` order bright fringe.
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