Oscillations and Waves (NEET Physics): Questions 41 - 45 of 192

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Question number: 41

» Oscillations and Waves » Periodic Motion - Period Frequency

MCQ▾

Question

The time period of a simple pendulum of length 2 L as measured in an elevator descending with acceleration g / 3 is

Choices

Choice (4) Response
a.

6πLg

b.

π3Lg

c.

2π2L3g

d.

2π3L2g

Question number: 42

» Oscillations and Waves » Simple Harmonic Motion » Energy

MCQ▾

Question

The total energy of a particle executing S. H. M. is proportional to

Choices

Choice (4) Response
a.

Displacement from equilibrium position

b.

Frequency of oscillation

c.

Velocity in equilibrium position

d.

Square of amplitude of motion

Question number: 43

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

A particle executes a simple harmonic motion of time period T. Find the time taken by the particle to go directly from its mean position to 12th the amplitude

Choices

Choice (4) Response
a.

T8

b.

T4

c.

T12

d.

T2

Question number: 44

» Oscillations and Waves » Periodic Functions

Assertion-Reason▾

Assertion (Ꭺ)

In S. H. M. , the motion is ‘to and fro’ and periodic.

Reason (Ꭱ)

Velocity of the particle V=ωk2x2 (where x is the displacement and k is amplitude)

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Ꭺ is false but Ꭱ is true
c. Ꭺ is true but Ꭱ is false
d. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 45

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

If a simple pendulum oscillates with amplitude of 30 mm and time period of 5 sec, then its maximum velocity is

Choices

Choice (4) Response
a.

0.28ms

b.

0.16ms

c.

0.037ms

d.

0.028ms

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