# Question Bank Solutions for ICSE Class 9 - CISCE - Physics

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Which wave property determines (a) loudness, (b) pitch?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

What are wavelength, frequency, time period and amplitude of a sound wave?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

Guess which sound has a higher pitch: guitar or car horn?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

Distinguish between loudness and intensity of sound.

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

What is loudness of sound? What factors does it depend on?

[0.07] Sound
Chapter: [0.07] Sound
Concept: Sound Waves and Its Types

What is meant by measurement?

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Define  Standard metre.

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Name two units of length which are bigger than a metre. How are they related of the metre?

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

How is nanometer related to Angstrom?

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following: 1 light year =……….m

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following: 1 m =……….Å

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following: 1 m  =……….. µ

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following: 1 micron =………..Å

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following: 1 fermi = ……….. m

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following: 1 g =………kg

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements

Complete the following : 1 mg =………kg

[0.01] Measurements and Experimentation
Chapter: [0.01] Measurements and Experimentation
Concept: Measurements
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