State the differences between ultrasonic sound and infrasonic sound?
Updated 1/12/2026
Differentiate between good conductors and bad conductors of electricity.
Updated 1/12/2026
A crackling sound is heard while taking off sweater during winters. Explain the reason behind this.
Updated 1/12/2026
Name some musical instrument which are simply beaten or struck to produce melodious music.
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What do you mean by magnetic effect of current?
Updated 1/12/2026
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