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Explain why (or how) in a sound wave, a displacement node is a pressure antinode and vice-versa?
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1
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3865
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December 26, 2016
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Which harmonic mode of the pipe is resonantly excited by a 430 Hz source?
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1
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2124
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December 26, 2016
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The wave pattern on a stretched string is shown in figure
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1
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1757
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December 26, 2016
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A pipe 20 cm long is closed at one end
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1
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2622
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December 26, 2016
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A steel rod 100 cm long is clamped at its middle
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1
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5539
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December 26, 2016
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Two sitar strings A and B playing the note 'Ga'
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1
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2900
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December 26, 2016
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A narrow sound pulse (for example, a short pip by a whistle) is sent across a medium
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1
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3178
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December 26, 2016
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A bat emits ultrasonic Sound of frequency 1000 kHz in air
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1
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3783
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December 26, 2016
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The earth has a radius of 6400 km
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1
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2970
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December 26, 2016
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If c is rms speed of molecules in a gas
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1
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5031
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December 26, 2016
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Earthquakes generate sound waves inside the earth
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1
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1815
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December 26, 2016
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One end of a long string of linear mass density
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1
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3039
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December 26, 2016
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A stone dropped from the top of a tower of height 300 m
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1
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1269
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December 26, 2016
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State Newton's formula for velocity of sound in air. Point out the error and hence, discuss Laplace's correction
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0
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13280
|
August 24, 2016
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Define Doppler effect Deduce the apparent frequency of sound in case of:
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1
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4397
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August 24, 2016
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Use the formula
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1
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910
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August 23, 2016
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What is standing wave ? Give its characteristics
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0
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4195
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August 23, 2016
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List the factors affecting the speed of sound in a gaseous medium
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0
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2185
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August 23, 2016
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A standing wave is represented by
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1
|
797
|
August 23, 2016
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In a dark room, would you able to tell whether a given note had been produced by a piano or a violin?
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0
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954
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August 23, 2016
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Explain the factors on which the pitch of a tuning fork depends
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0
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1425
|
August 23, 2016
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When a source of sound passes us, whether it be a car horn or a train whistle, the pitch we hear goes from high to low. Explain why. Use any relation to support your explanation?
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0
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772
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August 23, 2016
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A steel rod 100 cm long is clamped at its middle. The fundamental frequency of longitudinal vibrations of the rod are given to be 2.53 kHz. What is the speed of sound in steel?
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0
|
1965
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August 23, 2016
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A 1 metre long tube open at one end, with a movable piston at other end
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1
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2031
|
August 23, 2016
|
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A hospital uses an ultrasonic scanner to locate tumours in a tissue
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1
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4956
|
August 23, 2016
|
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A bat emits ultrasonic sound of frequency
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1
|
938
|
August 23, 2016
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Give full form of RADAR
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0
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1034
|
August 23, 2016
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Give full form of SONAR
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0
|
1953
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August 23, 2016
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What are (he essential point of difference between sound and light waves?
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0
|
749
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August 23, 2016
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A narrow sound pulse (for example, a short PiP by a whistle is sent across a medium
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|
1
|
961
|
August 23, 2016
|