Home
Class 11
PHYSICS
Two sounding bolies are producing progre...

Two sounding bolies are producing progressive waves given by `y_(1) = 2 sin (400 pi t)` and `y_(2) = sin (404 pi t)` where `t` is in second, which superpose near the ears of a persion. The person will hear

A

`2 beats//s` with intensity ratio `9//4` between maximum and minima

B

`2 beats//s` with intensity ratio `9` between maximum and minima

C

`4 beats//s` with intensity ratio `16` between maximum and minima

D

`4 beats//s` with intensity ratio `16//9` between maximum and minima

Text Solution

Verified by Experts

The correct Answer is:
B
`f_(1) = (omega_(1))/(2 pi) = ((400 pi)/(2 pi)) = 200 H_(Z)`
`f_(2) = (omega_(2))/(2 pi) = ((404 pi)/(2 pi)) = 202 H_(Z)`
:. `f_(b) = f_(2) - f_(1) = 2 H_(Z)`
`A_(1) = 2` and `A_(2) = 1`
`(I_(max))/(I_(min)) = ((A_(1) + A_(2))/(A_(1) - A_(2)))^(2) = (9)/(1)`
Promotional Banner

Topper's Solved these Questions

  • SOUND WAVES

    DC PANDEY|Exercise Single correct option|1 Videos

  • SOUND WAVES

    DC PANDEY|Exercise Level 2 More Than One Correct|5 Videos

  • SOUND WAVES

    DC PANDEY|Exercise Subjective Questions|1 Videos

  • SOLVD PAPERS 2017 NEET, AIIMS & JIPMER

    DC PANDEY|Exercise Solved paper 2018(JIPMER)|38 Videos

  • SUPERPOSITION OF WAVES

    DC PANDEY|Exercise Level 2 Subjective|8 Videos

Similar Questions

Explore conceptually related problems

Two standing bodies producing progressive waves are given by y_(1) = 4 sin 400 pi t and y_(2) = 3 sin 404 pi t One of these bodies situated very near to the ears of a person who will hear :

Two vibrating tuning forks produce progressive waves given by , y_(1) = 4 sin (500 pi t) and y_(2) = 2 sin (506 pi t) . These tuning forks are held near the ear of person . The person will hear

Two vibrating tuning fork produce progressive waves given by y_(1)=4 sin(500 pit) and y_(2)=2 sin(506 pi t) . These tuning forks are held near the ear of a person. The person will hear alpha beats/s with intensity ratio between maxima and minima equal to beta . Find the value of beta-alpha .

Two sounding bodies producing prograssive waves given by y_1 =4 sin (400 pit ) and y_2 3sin ( 404 pit ) ,are situated very near to the ears of a person.He will hear (Here intensity ratio is between maxima and minima )

Two vibrating tuning fork produce progressive waves given by y_(1) = 4 sin 500 pi t and y_(2) = 2 sin 506 pi t . Number of beats produced per minute is :-

Beats are produced by two waves given by y_(1)= a sin 2000 pi t and y_(2) =a sin 2008 pi t . The number of beats heard per second is

Determine the resultant of two waves given by y_(1) = 4 sin(200 pi t) and y_(2) = 3 sin(200 pi t + pi//2) .

Two waves are represented by: y_(1)=4sin404 pit and y_(2)=3sin400 pit . Then :