A set of 20 tuning forks is arranged in a series of increasing frequencies. If each fork gives 4 beats with respect to the preceding fork and the frequency of the last fork is twice the frequency of the first, then the frequency of last fork is_____Hz.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION
(152)
f 1 = f
f 2 =f+4
f 3 = f+2x4
f 4 = f+3 x 4
f 20 = f + 19 x 4
f+(19x4) = 2xf
f = 76 Hz.
Frequency of last tuning forks = 2f
=152Hz
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The 0equations of two waves are given by:
These waves are simultaneously passing through a string…
Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The. ratio of the in…
An observer moves towards a stationary source of sound with a velocity equal to one-fifth of the ve…
If a wave gets refracted into a denser medium, then which of the following is true?
A radar sends an electromagnetic signal of electric field (E 0 ) = 2.25 V/m and magnetic field (B 0…
The velocity of sound in a gas. in which two wavelengths 4.08m and 4.16m produce 40 beats in 12s, w…