[1 Mark Question Answer]

Questions

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5 questions · timed · auto-graded

Question 11 Mark

Which of the following determines the loudness of a sound wave ? $(a)$ Wavelength $(b)$ Frequency, and $(c)$ Amplitude

Answer

AMPLITUDE.

Question 21 Mark

Which characteristics of sound makes it possible to recognize a person by his voice without seeing him?

Answer

Characteristic is TIMBRE or QUALITY makes it possible to recognize a person by his voice without seeing him.

Question 31 Mark

Name the characteristic of sound related to its frequency

Answer

Characteristic of sound related to its frequency is $\text{PITCH}.$

Question 41 Mark

What determines the pitch of a sound?

Answer

FREQUENCY. A number of vibrations per second determine the pitch. Higher frequency, higher pitch means shrill sound. A ‘ low pitch has a flat sound.

Question 51 Mark

Name the unit in which the loudness of sound is expressed.

Answer

Unit of the loudness of sound is expressed in decibel $(dB)$

[1 Mark Question Answer] - PHYSICS STD 8 Questions - Vidyadip

PHYSICS [1 Mark Question Answer]