TORSIONAL PENDULUM

STATEMENT-1 : Time period of a physical pendulum is independent of mass of the body. STATEMENT-2 : Time period of a torsional pendulum is 2pi sqrt((l)/(k)) where, l= moment of inertia and k= Torsional constant. STATEMENT-3 : S.H.M. is an example of non-uniform motion.

STATEMENT-1 : Time period of a physical pendulumis independent of mass of the body. STATEMENT-2 : Time period ofa torsional pendulum is 2pi sqrt((l)/(k)) where, l= moment of inertia and k= Torsional constant. STATEMENT-3 : S.H.M. is an example of non-uniform motion.

Q. Statement I Three pendulums are suspended from ceiling as shown in Fig. These three pendulums are set to oscillate as shon by arrows, and it is found that all three have same time period. Noe, all three are taken to a place where acceleration due to gravity changes to 4/9th of its value at the first place. If spring pendulum makes 60 cycles in a given time at this place, then torsion pendulum and simple pendulum will also make 60 oscillation in same (given) time interval. Statement II: Time period of torsion pendulum is independent of acceleration due to gravity.

Q. Statement I Three pendulums are suspended from ceiling as shown in Fig. These three pendulums are set to oscillate as shon by arrows, and it is found that all three have same time period. Noe, all three are taken to a place where acceleration due to gravity changes to 4/9th of its value at the first place. If spring pendulum makes 60 cycles in a given time at this place, then torsion pendulum and simple pendulum will also make 60 oscillation in same (given) time interval. Statement II: Time period of torsion pendulum is independent of acceleration due to gravity.

Give an expression of time period of torsion pendulum. Explain the terms involved ?

A simple pendulum , a physical pendulum, a torsional pendulum and a spring-mass systeam, each of same frequency are taken to the Moon. If frequencies are measured on the moon, which systeam of systeams will have it unchanged?

A simple pendulum , a physical pendulum, a torsional pendulum and a spring-mass systeam, each of same frequency are taken to the Moon. If frequencies are measured on the moon, which systeam of systeams will have it unchanged?

A simple pendulum , a physical pendulum, a torsional pendulum and a spring-mass systeam, each of same frequency are taken to the Moon. If frequencies are measured on the moon, which systeam of systeams will have it unchanged?

The moment of inertia of the disc used in a torsional pendulum about the suspension wire is 0.2kg-m^2 . It oscillates with a period of 2s. Asnother disc is placed over the first one and time period of the system becomes 2.5s. Find the moment of inertia of the second disc about the wire.