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Attempt either (I) with all sub parts or (II) with all sub parts from the following two questions-
Draw a graph for a wave representing wave disturbance and time for a sound changing from low pitch to high pitch, keeping the amplitude of the sound same.
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
Represent graphically by two separate diagrams in each case
What are wavelength, frequency, time period and amplitude of a sound wave?
Waves of frequency 100 Hz are produced in a string as shown in figure. Give its: (a) Amplitude (b) Wavelength (c) Velocity
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