Answer :

A. 30 Hz B. 3rd, 5th and 7th

C. 2nd, 4th and 6th


D. 48 m s1


The highest fundamental frequency is the gcd (greatest common divisor) of all other frequencies.


Since, we know that gcd of 90,150 and 210 is 30, so,


(A)


Now, f1, f2, f3 are integral multiples of f.


1=3


2=5


3=7 (B)


We know that nth overtone is (n+1)th frequency.


So, 3f -> 2nd overtone and 3rd harmonic.


So, 5f -> 4th overtone and 6th harmonic.


So, 7f -> 6th overtone and 7th harmonic. (C)


We know that, 1=


So,


We get, K=48 m/s (D)


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

The earth has a rPhysics - Exemplar

If c is r.m.s. spPhysics - Exemplar

A steel wire has Physics - Exemplar

The pattern of stPhysics - Exemplar

Speed of sound waPhysics - Exemplar

A train, standingPhysics - Exemplar

A sound wave is pPhysics - Exemplar

A steel wire of mHC Verma - Concepts of Physics Part 1

Two wires are kepHC Verma - Concepts of Physics Part 1

With propagation Physics - Exemplar