You shout at a cliff, and hear your echo in 2 seconds. If the speed of sound in the air is 340 m/s, the distance of the cliff from you is __________.
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[Ques. 2] Increasing the speed of waves on a guitar string increases the _________ of the sound it produces.
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[Ques. 3] A wave moves in a rope with a certain wavelength. A second wave is made to move in the same rope with twice the wavelength of the first wave. The frequency of the second wave is _________ times the frequency of the first wave.
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[Ques. 4] Two examples of a transverse wave are __________ and __________.
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[Ques. 5] Two examples of a longitudinal wave are __________ and __________.
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[Ques. 6] The wavelength of a wave multiplied by the frequency of the wave is the wave's __________.
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[Ques. 7] A _________ wave is one with its oscillations perpendicular to the direction of propagation.
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[Ques. 8] The maximum displacement of points on a wave from the equilibrium position is the wave's __________.
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[Ques. 9] The distance between two successive like' points on a wave is the wave's __________.
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[Ques. 10] A complex tone can be produced by combining two or more __________.
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