MyQuestionIcon

1

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

Damped Oscillations

A source of u...

Question

A source of unknown frequency gives 4 beats/s, when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second, when sounded with a source of frequency 513 Hz. The unknown frequency is -

A

254 Hz

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

B

246 Hz

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

C

240 Hz

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

D

260 Hz

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

Open in App

Solution

The correct option is A 254 Hz
v' = 250 $\pm$ 4 = 254 OR 246
v'' = 2. v' and v'' = 513 $\pm$ 5 = 518 OR 508
So, 508 = 2(254)
Or v'' = 2(v')
Answer is (254 Hz).

Suggest Corrections

thumbs-up

78

Similar questions

Q. A source of unknown frequency gives

4 b e a t s / s

, when sounded with a source of known frequency

250 H z

. The second harmonic of the source of unknown frequency gives five beats per seconds, when sounded with a source of frequency

513 H z

. The unknown frequency is :

Q. A source of frequency n gives

5

beats per seconds when sounded with a source of frequency

200

Hz. The second harmonic frequency

2

n of source gives

10

beats/s. When sounded with a source of frequency

420

Hz, the value of n is?

Q. A source of sound gives five beats per second, when sounded with another source of frequency

100 s^{- 1}

. The second harmonic of the source together with a source of frequency

205 s^{- 1}

5 beats / sec

. The frequency of the first source is

Q. A source of frequency v given 5 beats/second when sounded with a source of frequency 200 Hz. The second harmonic of frequency 2v of source gives 10 beats/second when sounded with a source of frequency 420 Hz. The value of v is

Q. A tuning fork of unknown frequency produces 4 beats per second when sounded with another tuning fork of frequency 254 Hz. It gives the same number of beats per second when unknown tuning fork loaded with wax. The unknown frequency before loading with wax is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Damped Oscillations

PHYSICS

Watch in App

explore_more_icon

Explore more

Damped Oscillations

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon