In the bell jar experiment,as air is removed | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Sound is a mechanical wave that requires a material medium for its propagation.In the bell jar experiment,as the air is pumped out,the density of

Vedclass · Accepted Answer

intensity of sound falls

Vedclass · Answer

(A) Sound is a mechanical wave that requires a material medium for its propagation.In the bell jar experiment,as the air is pumped out,the density of the medium (air) inside the jar decreases.Since sound intensity depends on the density of the medium and the amplitude of the vibrations,the reduction in air molecules leads to a decrease in the energy transmitted.Consequently,the intensity of the sound heard by the observer gradually falls until it becomes inaudible when a vacuum is created.

In the bell jar experiment,as air is removed from the jar,

Similar Questions

Give four practical uses of ultrasonic vibrations.

$A$ key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case,

Sound produced by a thunderstorm is heard $10 \, s$ after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given speed of sound $= 340 \, m \, s^{-1}$.) (in $, m$)

The given graph shows the displacement versus time relation for a disturbance travelling with a velocity of $1500\, m \,s^{-1}$. Calculate the wavelength of the disturbance.

When we change a feeble sound to a loud sound,we increase its:

Vedclass Test Series

Exam Paper Generator

Online Exam Module