Q.

The wavelengths of two sound notes in air are 40/195m and 40/193m. Each note produces 9 beats per second separately with a third note of fixed frequency. The velocity of sound in air in m/s is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

360

b

320

c

300

d

340

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

detailed_solution_thumbnail

n1=Vλ1=195V40 ; n2=Vλ1=193V40 ; n1-n=9
n2-n=9 ; n1 - n2 = 18 ;

18=v40(195-193)
v = 360 ms-1

Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon