A Man Can Hear the Sound of Frequency :

A man can hear the sound of frequency :

MCQ

A man can hear the sound of frequency : 1000 Hz

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Chapter 8 Propagation of Sound Waves
Exercise 8 (C) | Q 1 | Page 185

Complete the following sentences:

An average person can hear sound of frequencies in the range ______ to _________.

Explain how do bats locate the obstacles and prey in their way.

What do you understand by the term sonic vibrations? State the range of sonic vibrations for the human ear.

How do bats locate their prey during a flight?

What is Galton’s whistle? To what use is it put?

The sonic boom of an aircraft has a time period of 0.00005s. Calculate the frequency of sound produced.

Ultraviolet radiation has a wavelength of 300Å. If the velocity of the electromagnetic wave is 3 × 10⁸ ms^-1. Calculate:

What does SONAR stand for?

Does SONAR make use of infrasonic sound?

1 hertz is equal to