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Physics Test 83...

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  • Question 1
    4 / -1

    A wave is represented by the equation y = a sin (kx – ωt) is superimposed with another wave to form a stationary wave such that the point x = 0 is a node. Then the equation of other wave is –

  • Question 2
    4 / -1

    Doppler effect for sound depends upon the relative motion of source and listener and it also depends upon that which one of these is in motion. Whereas in doppler effect for light it only depends upon the relative motion of the source of light and observer. The reason for it is :

  • Question 3
    4 / -1

    A string is stretched between two fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz. There are no other resonant frequencies between these two. The lowest resonant frequencies for this string is :-

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