Tamil Nadu SSLC (Class 10) Acoustics — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Tamil Nadu SSLC (Class 10) Acoustics in the app →Sound waves are classified as which type of mechanical wave?When a sound wave passes through air, how do the air particles move relative to the wave's direction of travelWhat is the approximate range of frequencies audible to the normal human ear?Sound waves of frequency below 20 Hz, which the human ear cannot hear, are calledA sound wave travels at 340 m/s with a frequency of 170 Hz. What is its wavelength?A sound wave of wavelength 0.20 m travels at a speed of 331 m/s. What is its frequency?In which medium does sound travel fastest, given the same conditions?How does the speed of sound in a gas change as the temperature of the gas increases?Using the relation that speed changes by 0.61 m/s per degree Celsius and is 331 m/s at 0 C, what is the approxWhen a sound wave reflects from an obstacle back into the same medium, which of these properties stays unchangWhen a compression in a sound wave is reflected at the boundary of a rarer medium, it returns as aThe human ear can distinguish two sounds as separate echoes only if the time gap between them is at leastTaking the speed of sound as 344 m/s and persistence of hearing as 0.1 s, what is the minimum distance from a An ultrasonic pulse sent from a ship to the sea floor returns after 1.6 s. If sound travels at 1400 m/s in seaA sound signal sent underwater between two boats 4.5 km apart is received after 3 s. What is the speed of sounThe apparent change in the frequency of sound heard when there is relative motion between source and listener A source emitting 500 Hz moves towards a stationary listener at 30 m/s. If sound travels at 330 m/s, what freqA source of 90 Hz approaches a stationary listener at one-tenth the speed of sound. What frequency does the liIn which situation is there NO Doppler effect, so the listener hears the original frequency?In SONAR, the speed of submarines and marine animals is found by measuring the change in which quantity betwee