The speed of sound in air at $0 ^\circ C$ is approximately
- A$344\ m/s$.
- B$260\ m/s.$
- ✓$330\ m/s.$
- D$390\ m/s.$
Answer: C.
View full solution →Question types
Sound question types
56 questions across 7 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.
56
Questions
7
Question groups
5
Question types
01
MCQ
8 Q→02[1 Mark Question Answer]
19 Q→03[2 Mark Question Answer]
6 Q→04[3 Mark Question Answer]
5 Q→05[5 Mark Question Answer]
1 Q→06fill in the blanks.
7 Q→07TRUE / FALSE
10 Q→Sample Questions
Sound questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Which of the following concepts is used in $\text{SONAR}$ to find the depth of oceans ?
- Amusical sound
- ✓echoes
- Claser
- Dnoise
Answer: B.
View full solution →Which of the following is a good sound absorber ?
- Aglass
- Bwater
- ✓thermocol
- Dvacuum
Answer: C.
View full solution →Sound cannot propagate through
- Asolids.
- Bliquids,
- Cgases.
- ✓vacuum.
Answer: D.
View full solution →If five waves are produced in one second, then the time period of the wave is
- ✓$0.2 s$
- B$0.25 s$
- C$0.1 s$
- D$0.05 s$
Answer: A.
View full solution →What does’ it mean if we say that a tuning fork has a frequency of 256 Hz?
Describe elasticity of a medium.
Why do echoes produced in an empty auditorium usually decrease when it is full of people ?
Why are the walls and floors of cinema halls and auditoriums covered with curtains and carpets?
What is the time period of a particle that is vibrating at a frequency of 10 Hz?
Describe sound as a longitudinal wave.
How are loudness and amplitude related?
Differentiate between transverse and longitudinal waves.
Why is a sound wave called a longitudinal wave?
Write the difference between the regions A and B.
List the factors on which the speed of sound depend ?
What is SONAR? How is it used to determine the depth of an ocean ?
What is an echo ? What are the necessary conditions for its occurrence?
Define amplitude, time period and frequency with respect to a sound wave. State the relationship between the time period and the frequency of a wave.
Calculate the minimum distance required for an echo to be heard.
How can you prove experimentally that sound cannot propagate through vacuum ?
The repetition of sound produced due to the reflection of sound waves from a reflecting surface is known as an _____________
Loudness of a sound depends upon the ____________ of the sound.
The SI unit of frequency is __________
The larynx has two folds called _________
Vibration means ________ motion of an object
SONAR is used to produce and transmit low frequency sound waves.
The human ear can hear two sounds separately only if they reach the ear after an interval of one-twentieth of a second.
Sound travels fastest in vacuum.
Loudness of a sound depends upon the frequency of the sound.
Sound is produced by vibrating bodies.
Generate a Sound paper free
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