Two sound sources when sounded simultaneously produce four beats … - Vidyadip

MCQ

Two sound sources when sounded simultaneously produce four beats in $0.25$ second. the difference in their frequencies must be

A
$4$
B
$8$
✓
$16$
D
$1$

✓

Answer

Correct option: C.

$16$

(c) No. of beats $=$ frequency difference $=\frac{4}{0.25}=16$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Waves and Sound→Waves and Sound — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A force $\vec{F}=(5 \hat{i}+3 \hat{j}) N$ is applied over a particle which displaces it from its original position to the point $\vec{s}=(2 \hat{i}-1 \hat{j}) m$. The work done on the particle is

A beam of light of wavelength $\lambda$ and with illumination $L$ falls on a clean surface of sodium. If $N$ photoelectrons are emitted each with kinetic energy $E$, then

Mercury thermometers can be used to measure temperatures upto

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio $C_p / C_v$ for the gas is

If on heating liquid through $80^{\circ} \mathrm{C}$, the mass expelled is ${(1/100)-}$ of mass still remaining, the coefficient of apparent expansion of liquid is

In an industrial process $10 \mathrm{~kg}$ of water per hour is to be heated from $20^{\circ} \mathrm{C}$ to $80^{\circ} \mathrm{C}$. To do this steam at $150^{\circ} \mathrm{C}$ is passed from a boiler into a copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at $90^{\circ} \mathrm{C}$. how many $\mathrm{kg}$ of steam is required per hour.(Specific heat of steam $=1$ calorie per $g^P C$, Latent heat of vaporisation $=540 \mathrm{cal} / \mathrm{gm}$ )

A concave lens and a convex lens have same focal length of $20 \mathrm{~cm}$ and both put in contact this combination is used to view an object 5 $\mathrm{cm}$ long kept at $20 \mathrm{~cm}$ from the lens combination. As compared to object the image will be

The decimal equivalent of $1 / 20$ upto three significant figures is

The work done in blowing a soap bubble of radius $0.2 \mathrm{~m}$ is (the surface tension of soap solution being $0.06 \mathrm{~N} / \mathrm{m}$ )

What is the modulation index of an over modulated wave