Question

Each question contains statements given in two columns, which have to be matched. The statements in Column-I are labelled A, B, C and D, while the statements in Column-II are labelled 1, 2, 3, 4 and 5. Any given statement in Column-I can have correct matching with ONE OR MORE statement(s) in Column-II.

Answer 1

A: For sound waves, the pressure variations represents inverse of particle variations. That is minimum pressure variation implies maximum particle displacement. Hence, at B the particle variation will be minimum but due to large pressure variation, potential energy will be maximum. Also sound waves are longitudinal waves. Hence options 2 and 5.

B:For sound waves, the pressure variations represents inverse of particle variations. That is minimum pressure variation implies maximum particle displacement. Hence, at B the particle variation will be minimum but due to large pressure variation, potential energy will be maximum. Also sound waves are longitudinal waves. Hence options 2 and 5.

C: Since point B is hinged, particles at B are at rest but have maximum elongation and hence maximum potential energy.

D: In an SHM, acceleration is maximum at the extreme end since $a\propto x$. Hence option 4. Velocity will be $0$ at extremes.