Fill in the following blanks with suitable word:
When the frequency of the sound is increased, the wavelength ______.
When the frequency of the sound is increased, the wavelength ______.
Question types
Sound question types
212 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
212
Questions
7
Question groups
5
Question types
01
Fill In The Blanks.
11 Q→02MCQ
28 Q→03true or false
1 Q→04Question Answer (2 Marks)
43 Q→05Question Answer (1 Marks)
90 Q→06Question Answer (3 Marks)
20 Q→07Question Answer (5 Marks)
19 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.
View full solution →
Fill in the following blanks with suitable word:
Loudness of sound depends on _____.
Loudness of sound depends on _____.
Fill in the following blanks with suitable word:
Sound cannot travel through _____.
Sound cannot travel through _____.
Fill in the following blanks with suitable word:
An echo is simply a ______ Sound.
An echo is simply a ______ Sound.
Fill in the following blanks with suitable word:
Sound is caused by _____.
Sound is caused by _____.
The speed of highly penetrating ultrasonic waves is:
- ALower than those of audible sound waves.
- BHigher than those of audible sound waves.
- CMuch higher than those of audible sound waves.
- ✓Same as those of audible sound waves.
Answer: D.
View full solution →The sound waves travel fastest:
- ✓In solids.
- BIn liquids.
- CIn gases.
- DIn vacuum.
Answer: A.
View full solution →The speeds of sound in four different media are given below. Which of the following is the most likely speed in $m/s$ with which the two under water whales in a sea talk to each other when separated by a large distance?
- A$340$
- B$5170$
- C$1280$
- ✓$1530$
Answer: D.
View full solution →A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through:
- AWater.
- BWax.
- ✓Vacuum.
- DEmpty vessel.
Answer: C.
View full solution →Which of the following vibrates when a musical note is produced by the cymbals in an orchestra?
- AStretched strings.
- BStretched membranes.
- ✓Metal plates.
- DAir columns.
Answer: C.
View full solution →State whether the following statement is true or false:
Sound produced by a vibrating body travels to our ears by the actual movement of air.
Sound produced by a vibrating body travels to our ears by the actual movement of air.
Why should we not put a pin or pencil in our ears?
The frequency of the sound emitted by the lioudspeaker is 1020Hz. Calculate the wavelength of the sound wave in air in cm where its velocity is 340m/s.
How is sound produced? Explain with the help of an example.
When we open a gas tap for a few seconds, the sound of escaping gas is heard first but the smell of gas comes later. Why?
A cricket ball is seen to hit the bat first and the sound of hitting is heard a little later. Why?
A tuning fork has a number 256 marked on it. What does this number signify?
What is the minimum distance in air required from a sound reflecting surface to hear an echo (at $20^\circ$$C$)?
View full solution →What name is given to those aircrafts which fly at speeds greater than the speed of sound?
Which of the following cannot transmit sound?
Water, Vacuum, Aluminium, Oxygen gas.
Water, Vacuum, Aluminium, Oxygen gas.
Name the physical quantity whose SI unit is ‘hertz’.
What is the range of frequencies associated with (a) infrasound (b) audible sound, and (c) ultrasound?
Why do we hear more clearly in a room with curtains then a room withour curtains?
Give reason for the following:
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
Name four ways in which sound can be produced.
When we put our ear to a railway line, we can hear the sound of an approaching train even when the train is far off but its sound cannot be heard through the air. Why?
How does sound from a sound producing body travel through air to reach our ears? Illustrate your answer with the help of a labelled diagram.
Explain the terms 'compression' and 'rarefactions' of a wave. What type of waves consist of compressions and rarefactions?
Consider the following sound waves marked A, B, C and D:
- Which two waves represent sounds of the same loudness but different pitch?
- Which two waves represent sounds of the same frequency but different loudness?
- State whether all these sound waves have been produced by the same vibrating body or different vibrating bodies?
- Which vibrating body/bodies could have generated the sound waves shown here?
How can reverberations in a big hall or auditotium be reduced?`
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below:
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200Hz.
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200Hz.
- What happens to the air in-between Anhas and the loudspeaker?
- Explain how Anhad receives sound in both ears.
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