TRUE / FALSE

Questions

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5 questions · timed · auto-graded

Question 11 Mark

Sound energy is reflected by soft and loose surfaces.

Answer

FALSE

Question 21 Mark

Subsonic waves are used in dish washing machines.

Answer

FALSE

Question 31 Mark

With the increase in the frequency of a body, the sound becomes shrill.

Answer

TRUE

Question 41 Mark

More the amplitude of a vibration, less is its loudness.

Answer

FALSE

Question 51 Mark

The range of sonic vibrations is between 20 Hz and 20,000 Hz.

Answer

TRUE

TRUE / FALSE - PHYSICS STD 8 Questions - Vidyadip

PHYSICS TRUE / FALSE