The distance between two consecutive crests is L, then the wavelength is given by:
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Physics GK · all questionsSounds waves and Motion
Sounds waves and Motion
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What is the wavelength of a sound wave in a medium with a frequency of 840 Hz and a speed of 380 m/s?
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What is the speed of sound in air?
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Least audible sound for most of the human ear is
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The figure given below shows the function of ultrasonic waves. What are these techniques called?
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What is the effect of pressure on the speed of sound?
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What are infra-red rays?
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Which of the following statements about the movement of sound in different mediums is true/false on 25°C?
A. In water (seawater), the speed of sound is 1531 m/s.
B. In air, the speed of sound is 346 km/s.
A. In water (seawater), the speed of sound is 1531 m/s.
B. In air, the speed of sound is 346 km/s.
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An echo is heard after 5 s of the production of sound which moves with a speed of 340 m/s. What is the distance of the mountain from the source of sound which produced the echo?
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Which of the following is the number of vibration made per unit time of a sound wave?
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More density of the particles in the medium through which sound travels, creates more . . . . . . . . and vice versa.
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A source of wave produces 20 crests and 20 troughs in 0.4 seconds. Find the frequency of the wave:
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The time period of a simple pendulum made by using a thin copper wire of length L is T. Suppose the temperature of the room in which this simple pendulum is placed increases by 30°C. What will be the effect on the time period of the pendulum?
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What is the approximate value of speed of sound in air?
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Which of the following statements is correct about sound waves and light waves?
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Which one of the following statements is correct? The velocity of sound
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There is an acoustic resonance, which echoes is the fixed resonance when it is in vibration.
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What are the main instruments in a SONAR, which are used to find the distance, direction and speed of an underwater body?
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Which one of the following is not true for an electromagnetic wave?
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Q100
Open questionThe speed of sound . . . . . . . . as it passes from solid to gaseous medium?
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