Oscillations and Waves (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 23 - 26 of 26

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Question number: 23

» Oscillations and Waves » Simple Pendulum

Appeared in Year: 2015

MCQ▾

Question

A simple pendulum of length l is made to oscillate with amplitude of 45 degrees. The acceleration due to gravity is g. Let T0=2πlg . The time period of oscillation of this pendulum will be

Choices

Choice (4) Response
a.

Slightly more than T0.

b.

Slightly less than T0.

c.

T0 irrespective of the amplitude.

d.

Dependent on whether it swings in a plane aligned with the north – south or east – west directions.

Question number: 24

» Oscillations and Waves » Simple Pendulum

Appeared in Year: 2014

MCQ▾

Question

The maximum value attained by the tension in the string of a swinging pendulum is four times the minimum value it attains. There is no slack in the string. The angular amplitude of the pendulum is –

Choices

Choice (4) Response
a.

600

b.

450

c.

300

d.

900

Question number: 25

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

A mass M is suspended from a spring of negligible mass. The spring is pilled a little and then released so that the mass executes SHM of time period T. If the mass is increased by m, the time period becomes 3T2 . Then the ratio of mM is:

Choices

Choice (4) Response
a.

35

b.

169

c.

53

d.

259

Question number: 26

» Oscillations and Waves » Harmonics

MCQ▾

Question

A wire with linear density of 0.005 kg/m is stretched between two rigid supports. Tension on the wire is 450 N. The wire resonates at 320 Hz. The next frequency at which wire resonates is 360 Hz. The length of the wire is –

Choices

Choice (4) Response
a.

3.75 m

b.

2.0 m

c.

3.0 m

d.

3.25 m

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