Question

What is the force between two small charged spheres having charges of 2*10^-7 and 3*10^-7 placed 30cm apart in air​

Answer 1

Answer:

CHARACTERISTICS OF SOUND:

Loudness: The degree of the sensation produced on the ear is known as LOUDNESS of

sound. It is expressed in decibels (dB).

Example: Sound produced from drums in the school assembly.

Feebleness: The lack of volume or loudness is known as FEEBLENESS of sound.

Example: Sound produced while taking pledge in the school assembly.

Loudness and feebleness of a sound are measured in decibels(dB)

Amplitude: The maximum displacement of a vibrating body from its mean position is

known as AMPLITUDE.

Loudness and feebleness of a sound depend on AMPLITUDE of vibration.

Pitch: The Shrillness of a sound is known as PITCH.

Explanation:

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