Physics-Wave Motion
NEET Physics Wave Motion MCQ Question
Type: MCQ-numerical-Easy-Class 11
A wave travels along a stretched string with a speed v, which depends on the tension T in the string and the mass per unit length μ. If the tension is quadrupled and the mass per unit length remains constant, how will the speed of the wave change?
A
It will double.
B
It will quadruple.
C
It will remain the same.
D
It will increase by a factor of 1.5.
Correct Answer
Option A
Detailed Explanation
The speed of a wave on a string is given by v = √(T/μ). If the tension T is quadrupled, the speed v will change by a factor of √4 = 2, hence it will double.
Found an issue with this question?