Question : The loudness of the sound depends on:
Option 1: Frequency
Option 2: Wavelength
Option 3: Amplitude
Option 4: Pitch
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Correct Answer: Amplitude
Solution : The correct option is Amplitude.
The intensity or amplitude of a sound determines its loudness. The amplitude of a sound wave determines how loud it is perceived. In the context of sound waves, amplitude reflects the height or size of the wave, and it correlates to the amount of air compression and rarefaction caused by the vibrating source. A greater amplitude indicates that the air molecules are more displaced, resulting in a more powerful sound.
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Question : Which of the following properties of sound is affected by a change in air temperature?
Option 2: Intensity
Option 4: Wavelength
Question : The humidity of the air depends on:
Option 1: Temperature
Option 2: Location
Option 3: Weather
Option 4: All of the above
Question : The degree of dissociation of an electrolyte depends on
Option 1: dilution
Option 2: impurities
Option 3: atmospheric pressure
Option 4: method of dissolution
Question : If the density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio to the velocity of sound?
Option 1: 4:1
Option 2: 2:1
Option 3: 1:16
Option 4: 1:4
Question : The unit of frequency is_______.
Option 1: hertz
Option 2: sec
Option 3: gm
Option 4: cm
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