MHT CET20249 May 2024Evening ShiftPhysicsWaves and SoundActual
A string of mass 0.2 Kg is under a tension of 2.5 N . The length of the string is 2 m . A transverse wave starts from one end of the string. The time taken by the wave to reach the other end is
Options
- A0.2 ~s
- B0.4 s
- C0.6 s
- D0.8 s
Correct answer
B. 0.4 s
Step-by-step solution
Mass per unit length: aligned & m = M l & ~m = 0.2 2 =0.1 ~kg / m aligned Velocity of transverse wave: aligned & v= T m & v= 2.5 0.1 =5 ~m / s aligned Time taken by the wave to reach other end is: t = l v = 2 5 =0.4 ~s