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Syllabus
a)varies with time
b)varies with distance separating them
c)varies with time as well as distance
d)is always zero
An observer is moving with half the speed of light towards a stationary microwave source emitting waves at frequency 10 GHz. What is the frequency of the microwave measured by the observer ? (speed of light = 3 × 108 ms –1)
a)of the inherent characteristics of sound waves in air
b)air does not have modulus of rigidity
c)air is a mixture of several gases
d)density of air is very small
a)energy,momentum and mass
b)energy
c)energy and mass
d)energy and linear momentum
a) 1 w/m2
b) 5 w/m2
c) 10 w/m2
d) 100 w/m2
[Answer = 463m/s]
NO LINK PLEASE
[Answer : 95 cm]
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[Answer : 15700 : 1]
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how there there is 180 degree phase shift in the resultant wave?
AND
what is the basic concept behind the oscillations?