Q10 of 97 Page 322

A wave pulse, travelling on a two-piece string, gets partially reflected are partially transmitted at the junction. The reflection wave is inverted in shape as compared to the incident one. If the incident wave has wavelength λ and the transmitted wave λ’,

As we know that the pulse travels faster in a thinner string.


The wavelength of the transmitted wave us equal to the wavelength of the incident wave because


the frequency remains constant.

More from this chapter

All 97 →
8

Both the strings, shown in figure (15.Q1), are made of same material and have same cross section. The pulleys are light. The wave speed of a transverse wave in the string AB is υ1 and in CD it is υ2. Then υ1/υ2 is

 9

Velocity of sound in air is 332 m s−1. Its velocity in vacuum will be

 11

Two waves represented by y = a sin(ωt − kx) and y = a cos (ωt − kx) are superposed. The resultant wave will have an amplitude

 12

Two wires A and B, having identical geometrical construction, are stretched from their natural length by small by equal amount. The young modulus of the wires are YA and Y �B whereas the densities are ρA and ρB. It is given that YA > YB and ρA > ρB. A transverse signal started at one end takes a time t1 to reach the other end for A and t2 for B.