Home
Class 12
PHYSICS
A string is stretched betweeb fixed poin...

A string is stretched betweeb fixed points separated by `75.0 cm`. It observed to have resonant frequencies of `420 Hz` and `315 Hz`. There are no other resonant frequencies between these two. The lowest resonant frequency for this strings is

A

`10.5 Hz`

B

`105 Hz`

C

`1.05 Hz`

D

`1050 Hz`

Text Solution

Verified by Experts

The correct Answer is:
2
`(n + 1) (v)/(2l) = 420 …..(1)`
`(nv)/(2l) = 315 ….(2)`
`(1) - (2) (V)/(mu) = 105 Hz , f_(min) = = 105 Hz`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 3 PART I|19 Videos

  • TRAVELLING WAVES

    RESONANCE ENGLISH|Exercise Exercise- 2 PART IV|9 Videos

  • TEST SERIES

    RESONANCE ENGLISH|Exercise PHYSICS|130 Videos

  • WAVE ON STRING

    RESONANCE ENGLISH|Exercise Exercise- 3 PART II|7 Videos

Similar Questions

Explore conceptually related problems

A 75 cm string fixed at both ends produces resonant frequencies 384 Hz and 288 Hz without there being any other resonant frequency between these two . Wave speed for the string is

A 75 cm string fixed at both ends produces resonant frequencies 384 Hz and 288 Hz without there being any other resonant frequency between these two . Wave speed for the string is

A wire having a linear density of 0.05 g//cm is stretched between two rigid supports with a tension of 450N . It is observed that the wire resonates at a frequency of 420 Hz . The next higher frequency at which the same wire resonates is 490 Hz . Find the length of the wire.

A wire having a linear density of 0.05 g//cm is stretched between two rigid supports with a tension of 450N. It is observed that the wire resonates at a frequency of 420 Hz. The next higher frequency at which the same wire resonates is 490 Hz. Find the length of the wire.

A wire having a linear mass density 5.0xx10^(3) kg//m is stretched between two rigid supports with tension of 450 N. The wire resonates at a frequency of 420 Hz . The next higher frequency at which the same wire resonates is 480 N . The length of the wire is

Fundamental frequency of pipe is 100 Hz and other two frequencies are 300 Hz and 500 Hz then

Fundamental frequency of pipe is 100 Hz and other two frequencies are 300 Hz and 500 Hz then

When the tension in a string is increased by 44%. the frequency increased by 10Hz the frequency of the string is

A wire having a linear mass density 5.0 xx 10^(-3) kg//m is stretched between two rigid supports with a tension of 450 N. The wire resonates at a frequency of 420 Hz. The next higher frequency at which the same wire resonates is 490 Hz. Find the length of the wire.

Three consecutive resonant frequencies of a string are 90, 150 and 210 Hz . If the length of the string is 80 cm , what would be the seed (in m//s ) of a transverse wave on this string ?

Home
Profile