Answer :

Let, the length of aluminium rod is *l*.

Now, firstly we calculate the speed of sound in air.

We know that,

Speed of sound (in air) =

346 =

Time taken in air = (i)

Now, speed of sound in aluminium.

We know that,

Speed of sound (in aluminium) =

6420 =

Time taken in aluminium = (ii)

Now by dividing (i) and (ii), we get:

_{= 6420/346}

=

Therefore, the ratio is 18.55:1

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 Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation