Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa

Sound waves travel at 380 \mathrm{~m} / \mathrm{s} through a warm air and at 3800 \mathrm{~m} / \mathrm{s} through brass: The wace length of a 760 \mathrm{~Hz} acoustic wave as it enters horas from warm air

Option: 1

decrease by a factor 10


Option: 2

Increase by a factor 20


Option: 3

Increase by factor 10


Option: 4

decrease by a factor 20


Answers (1)

best_answer

V =n \lambda \\

V\alpha \lambda \\

\frac{v_1}{v_2} =\frac{\lambda_1}{\lambda_2} \\

\frac{380}{3800} =\frac{\lambda 1}{\lambda_2} \\

\frac{\lambda_1}{\lambda_2} =\frac{1}{10} \\

\lambda_2 =10 \lambda_1

Increase by a factor 10

Posted by

Riya

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Latest Question