MEDIUM
10th ICSE
IMPORTANT
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Draw a graph between displacement from mean position and time for a body executing free vibrations in vacuum.

Important Questions on Sound

HARD
10th ICSE
IMPORTANT
State two ways of increasing the frequency of vibrations of a stretched string.
MEDIUM
10th ICSE
IMPORTANT
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
EASY
10th ICSE
IMPORTANT

The digram in fig. 7.12 shows the displacement time graph of a vibrating body.

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(iii) Why is the amplitude of vibrations gradually decreasing.

EASY
10th ICSE
IMPORTANT
A tuning fork is set into vibrations in air. Name the kind of vibrations it executes.
EASY
10th ICSE
IMPORTANT
Complete the following sentence:
Resonance is a special case of  forced vibrations when frequency of the driving force is _____ to the natural frequency of the body.
EASY
10th ICSE
IMPORTANT
A wire stretched between two fixed supported, is plucked exactly in the middle and then released. It executes (neglect the resistance of the medium): 
EASY
10th ICSE
IMPORTANT
A tuning fork of frequency 256 Hz will resonate with another tuning fork of frequency:
MEDIUM
10th ICSE
IMPORTANT
What determines the pitch of a sound?