Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 10

MEDIUM

11th Odisha Board

IMPORTANT

Earn 100

Show that the second resonance length of a closed organ pipe is three times the first resonance length.

Important Questions on Sound

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 11

If you are walking on the moon, can you hear the sound of your own footsteps?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 12

Why does your voice sound different over telephone than in person?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 13

Two tuning forks have identical frequencies, but one is stationary while the other is mounted on a rotating record turntable. What does a listener hear?

EASY

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 1

If the speed of sound in air is

332 m / s

at N.T.P., find the speed of sound at

30 ° C

and

0.7 m

of mercury pressure.

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 2

Calculate the speed of sound in steel, given

Y

steel

= 2 \times 10^{11} N / m^{2}

and density of steel

= 7.8 \times 10^{3} kg / m^{3}

.

HARD

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 3

How long will it take for sound waves to travel a distance $' l'$ between points $A$ and $B$ if the air temperature between them varies linearly from $T_{1}$ to $T_{2}$ ? The speed of sound at $0 ° C$ is $C_{0}$ .

HARD

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 4

The fundamental frequency of an open pipe is

500 H z

, Determine the length of the pipe, if the speed of sound is

340 m / s

.

HARD

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 11>Chapter 11 - Sound>MODEL QUESTIONS>Q 5

Two sound waves of wave length

100 cm

and

102 cm

respectively produce 6 beats per second. Determine the speed of sound in the medium.