Select Goal &
City
Select Goal
Explore
Question:
The intensity of sound increases at night due to
The intensity of sound increases at night due to
Updated On: Aug 1, 2022
- increase in density of air
- decrease in density of air
- low temperature
- none of the above
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
At night, amount of carbon dioxide in atmosphere increases which raises the density of atmosphere. Since intensity is directly proportional to density, intensity of sound is more at night.
Was this answer helpful?
0
0
Top Questions on sound
- A point source is placed at origin. Its intensity at distance of 2 cm from source is I then intensity at distance 4 cm from the source shall be.
- Which of the following is a transducer ?
(A) Loudspeaker
(B) Amplifier
(C) Rectifier
(D) Microphone
Choose the correct answer from the options given below : - An organ pipe 40cm long is open at both ends. The speed of sound in air is 360ms-1 . The frequency of the second harmonic is ____Hz.
- The velocity of sound in a gas, in which two wavelengths, 4.08 m and 4.16 m produce 40 beats in 12 s, will be:
- In an experiment to determine the velocity of sound in air at room temperature using a resonance tube, the first resonance is observed when the air column has a length of 20.0 cm for a tuning fork of frequency 400 Hz is used. The velocity of the sound at room temperature is 336 ms–1. The third resonance is observed when the air column has a length of ______ cm.
View More Questions
Questions Asked in AFMC exam
- 1200 ml of air remaining in lungs even after forceful expiration is
- AFMC - 2012
- Exchange Of Gases
- A dicot plant in which scattered vascular bundles are present in stem is
- AFMC - 2012
- Anatomy of Flowering Plants
- Which plays an important role in the dispersal of spores in Funaria?
- AFMC - 2012
- Kingdom Plant
- Sexual reproduction in eubacteria takes place by
- AFMC - 2012
- Kingdom Monera
- Which of the following acid is also a vitamin?
- AFMC - 2012
- Digestion and absorption
View More Questions
Concepts Used:
Sound
Sound is a vibration that propagates the mechanical wave of displacement and pressure, through a medium can be of any matter. In other words, the sound is the thin line between Music sound and Noise.
Types of Sounds:
Sound can be divided into two types depending on its frequency. The following are:-
Infrasonic Waves:
- Infrasonic waves have a frequency lower than 20 Hz. Since it is below the human hearing range, it is inaudible to humans.
- However, several other living organisms use these waves to communicate, whales, sharks, elephants, hippopotamus, etc. these waves are also used in the scientific field, it is used to study upcoming earthquakes, volcanic eruptions, human heart rates, rock formation stages, etc.
Ultrasonic waves:
- Ultrasonic waves have a frequency higher than 20 kHz. Since it is above the human hearing range, it is inaudible to humans.
- These waves are used in the scientific field, it is used to study human heart rates, to take sonograms, navigation of directions, imaging things, uniform sample mixing, communication, testing of samples, etc.
SUBSCRIBE TO OUR NEWS LETTER
COLLEGE NOTIFICATIONSEXAM NOTIFICATIONSNEWS UPDATES
Download the Collegedunia app on 
© 2024 Collegedunia Web Pvt. Ltd. All Rights Reserved