EASY
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What are stringed instruments made of?

Important Questions on Sound

EASY

Two pendulums C and D are suspended from a wire as shown in the given figure. Pendulum C is made to oscillate by displacing it from its mean position. It is seen that D also starts oscillating. Name the type of oscillation, D will execute.

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EASY
What do you understand by free vibrations of a body?
EASY
In a parallel LCR circuit, the current at resonance will be
EASY
The phenomenon that occurs when the frequency of forced vibrations on an object matches the natural frequency of that object, and produces a dramatic increase in amplitude is called
MEDIUM
A stretched wire vibrates with a frequency of 60 Hz when the tension in the wire is T1 and with a frequency of 130 Hz when the tension in the wire is T2. If the tension in the wire is T1+T2, its frequency of vibration is
EASY
Consider a driven damped mechanical oscillator is in resonance. Which of the following statements is true ?
EASY
In case of a forced vibration, the resonance wave becomes very sharp when the:
EASY
In Melde's experiment, when the tension decreases by 0.009 kg-wt, the number of loops changes from 4 to 5. The initial tension is
EASY
Define resonant vibrations.
MEDIUM

Observe the following picture and identify it.

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EASY

Recognise and match the musical instrument with its name in the given list.

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Violin Trumpet Tambourine Accordion Flute Bagpipe Trombone
EASY

Observe the following picture and identify it.

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EASY

Write the quadrants in which the following points lie:

-4,7

EASY

Recognise and match the musical instrument with its name from the given list:

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Violin Trumpet Tambourine Accordion Flute Bagpipe Trombone
MEDIUM

Observe the following picture and identify it.

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HARD

Match the columns.

1. Wind instruments     a. Vibrating string
2. Stringed instruments     b. Frequency
3. Percussion instruments c. Vibrating air column
4. Pitch d. Vibrating stretched membrane
5. Loudness e. amplitude
MEDIUM

Observe the following picture and identify it.

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EASY
Identify the part which vibrates to produce sound in the following instruments:
Flute
HARD
Classify percussion instruments based on the pitch produced by them.
MEDIUM
Name two musical instruments.