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Answer the following questions : (a) W...

Answer the following questions :
(a) When a low flying aircraft passes overhead, we sometimes notice a slight shaking of the piture on our TV screen. Suggest a possible expanation.
(b) As you have learnt in the text, the principle of linear superposition of wave displacement is basic to understanding intensity distributions in diffractions and interference patterns. What is the justification of this principle ?

A

interference

B

diffraction

C

polarisation of direct signal

D

Both (b) and (c)

Text Solution

Verified by Experts

The correct Answer is:
A
A low flying aircraft reflects the T.V signal. The slight shaking on the TV screen may be due to interference between the direct signal and the reflected signal.
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