
What are the differences between free and forced oscillations?
Important Questions on Sound


Two pendulums and are suspended from a wire as shown in the given figure. Pendulum is made to oscillate by displacing it from its mean position. It is seen that also starts oscillating. If the length of is made equal to , then what difference will you notice in the oscillations of ?

Two pendulums and are suspended from a wire as shown in the given figure. Pendulum is made to oscillate by displacing it from its mean position. It is seen that also starts oscillating. What is the name of the phenomenon when the length of is made equal to ?


Two pendulums and are suspended from a wire as shown in the given figure. Pendulum is made to oscillate by displacing it from its mean position. It is seen that also starts oscillating. Name the type of oscillation, will execute.



Describes the oscillatory motion of body in a dissipative medium under the influence of a periodic force, then the state of maximum amplitude of the oscillation is a phenomena of


If the amplitude of the particle is maximum for and the energy of the particle is maximum for then


Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and










