Question

(i) A simple instrument used to produce pure
sound of fixed frequency is :
(a) tuning fork (b) simple pendulum
(c) fire tongs
(d) metre scale
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Answer 1

Answer:

a) tuning fork

Explanation:

A tuning fork is the instrument used to produce the sound of a certain fixed frequency. A tuning fork is a sound resonator which is a two-pronged fork.

Hope this helps you

Answer 2

Answer:

tuning fork...

Explanation:

A simple instrument used to produce pure sound of fixed frequency is