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Microwave ocillators S(1) and S(2) are u...

Microwave ocillators `S_(1) and S_(2)` are used to show interference of electromagnetic waves on a screen which in parallel to `S_(1) S_(2)` and 2 m away from `S_(1)S_(2) ` . If `S_(1)S_(2)=20` cm and `lamda=4cm`, then the distance between the successive maxima and minima will be

A

20 cm

B

30 cm

C

40 cm

D

50 cm

Text Solution

Verified by Experts

The correct Answer is:
C
distance between successive maxima or minima=
`X=(lamdaD)/(d)=(4xx10^(-2)xx2)/(20xx10^(-2))`
`therefore X=0.4m=40cm`
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