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Two trains A and B are moving with speeds 20 m/ s and 30 m/s respectively in the same direction on the same straight track, with B ahead of A. The engines are at the front ends. The engine of trains A blows a long whistle
Assume that the sound of the whistle is composed of components varying in frequency from f1 = 800 Hz to f2 = 1120 Hz, as shown in the figure. The spread in the frequency (highest frequency – lowest frequency) is thus 320 Hz. The speed of sound in still air is 340 m/s
The distribution of the sound intensity of the whistle as observed by the passengers in train A is best represented by
The correct answer is:
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Two trains A and B are moving with speeds 20 m/ s and 30 m/s respectively in the same direction on the same straight track, with B ahead of A. The engines are at the front ends. The engine of trains A blows a long whistle
Assume that the sound of the whistle is composed of components varying in frequency from f1 = 800 Hz to f2 = 1120 Hz, as shown in the figure. The spread in the frequency (highest frequency – lowest frequency) is thus 320 Hz. The speed of sound in still air is 340 m/s
The speed of sound of the whistle is
Two trains A and B are moving with speeds 20 m/ s and 30 m/s respectively in the same direction on the same straight track, with B ahead of A. The engines are at the front ends. The engine of trains A blows a long whistle
Assume that the sound of the whistle is composed of components varying in frequency from f1 = 800 Hz to f2 = 1120 Hz, as shown in the figure. The spread in the frequency (highest frequency – lowest frequency) is thus 320 Hz. The speed of sound in still air is 340 m/s
The speed of sound of the whistle is
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In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
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In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
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In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
Equation of the standing wave in terms of excess pressure is ___ (Bulk modulus of air 
In an organ pipe (may be closed or open) of 99 cm length standing wave is setup, whose equation is given by longitudinal displacement null Where y is measured from the top of the tube in centimeters and it in t second
Equation of the standing wave in terms of excess pressure is ___ (Bulk modulus of air
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The upper end and the lower end of the tube are respectively
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Physics-General
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Physics-General
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Complete the following sentence with an appropriate conjunction.
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The time lag between two particles vibrating in a progressive wave separated by a distance 20 m is 0.02 s. The wave velocity if the frequency of the wave is 500 Hz, is
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