index-sq7-p11-2

PHYSICS
Class 11
Short Questions
Chapter 7

Q 1	Give two applications in which resonance plays an important role. See Answer
Q 2	What happens to the time period of a simple pendulum if its length is doubled? See Answer
Q 3	What will be the frequency of a simple pendulum if its length is ‘1 m’. See Answer
Q 4	Give one practical example each of free and forced oscillation. See Answer
Q 5	A simple pendulum set into vibrations and left untouched, eventually stops, why? See Answer
Q 6	Explain why in S.H.M the acceleration is zero when the velocity is greatest? See Answer
Q 7	Is there a connection between F and x in mass spring system? Explain. See Answer
Q 8	What happens to the frequency of a simple pendulum as its oscillations die down from large amplitude to small? See Answer
Q 9	A singer, holding a note of right frequency, can shatter a glass. Explain. See Answer