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What type of waves are illustrated by the movement of a rope whose one end is fixed to a pole and the other end is moved up and down?
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What is the nature of sound waves in air?
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What is the vacuum? Explain why, sound cannot travel through vacuum?
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Distinguish between longitudinal and transverse waves.
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Are sound waves longitudinal or transverse?
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What is the difference between a compression and a rarefaction in a sound wave? Illustrate your answer with a sketch.
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What is sound? What type of waves are sound wave in air?
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What are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
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Give two examples each of longitudinal waves and transverse waves.
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Explain the terms 'compressions' and 'rarefactions' of a wave. What type of waves consist of compressions and rarefactions.
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Explain the terms 'crests' and troughs' of a wave? What type of waves consist of crests and troughs?
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The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
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The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
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Which one of the following does not consist of transverse waves?
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Which of the following can produce longitudinal waves as well as transverse waves under different conditions?
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In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
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When we change a feeble sound to a loud sound, we increase its :
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Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the strings suitably. By doing so he is adjusting :
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Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros ?
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