Oscillations and Waves (NEET Physics): Questions 113 - 115 of 192

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Question number: 113

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

A pendulum suspended from the ceiling of a train has a period T, when the train is at rest. When the train is accelerating with a uniform acceleration a, the period of oscillation will,

Choices

Choice (4) Response
a.

Increase

b.

Become infinite

c.

Remain unaffected

d.

Decrease

Question number: 114

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

Which of the following are not corrected to make period of simple pendulum two times:

(a) its length is doubled

(b) the mass of the bob is doubled

(C) the mass of the bob and the length of the pendulum are doubled

(d) its length is made four times

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response
a.

2 and 4 are correct

b.

1 and 3 are correct

c.

1 and 2 are correct

d.

1, 2 and 3 are correct

Question number: 115

» Oscillations and Waves » Resonance

MCQ▾

Question

A particle with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force F sin ωt. If the amplitude of the particle is maximum for ω = ω 1 and the energy of the particle is maximum for ω = ω 2, then (where ω 0 natural frequency of oscillation of particle)

Choices

Choice (4) Response
a.

ω1=ω0andω2=ω0

b.

ω1=ω0andω2ω0

c.

ω1ω0andω2=ω0

d.

ω1ω0andω2ω0

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