CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Need for Intensity

A string of l...

Question

A string of length $l$ fixed at both ends vibrates in its fundamental mode and transverse waves travel along the string with a velocity $V$ . Sound waves travel in the air with velocity $v$ . What is the wavelength in air of the sound produced by this string?

A

\frac{2 l v}{V}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

\frac{2 l V}{v}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

\frac{l V}{v}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

2 l

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $\frac{2 l v}{V}$
$F r e q u e n c y o f s o u n d p r o d u c e d b y s t r i n g = n = \frac{V}{2 l} W a v e l e n g t h o f s o u n d i n a i r = \frac{v}{n} = \frac{v}{(V / 2 l)} = \frac{2 l v}{V}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A string of length 2 m is fixed at both ends. If this string vibrates in its fourth normal mode with a frequency of 500 It's then the waves would travel on it with a velocity of:

Q. An open organ pipe of length 20 cm in its fundamental mode resonates with string clamped at both ends and vibrating in its 2nd overtone. If length of string is 30 cm and velocity of sound is 340 m/s, then speed of travelling wave in string is

Q. A transverse wave is travelling on stretched string with velocity

u

. Tension in the string is

T

and mass density of string is

μ

. Find the velocity of cart

V

such that waves seem stationary w.r.t cart.

Q. A transverse wave is travelling on stretched string with velocity

u

. Tension in the string is

T

and mass density of string is

r

. Find the velocity of cart

V

such that waves seem stationary w.r.t cart.

Q. Two vibrating strings of the same material but length

L

2 L

2 r

r

respectively. They are stretched under the same tension. Both the string vibrate in their fundamental modes, the one of length

L

v_{1}

and other with frequency

v_{2}

v_{1} / v_{2}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Relative Motion in 2D

PHYSICS

Watch in App

explore_more_icon

Explore more

Need for Intensity

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon