NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1621 - 1625 of 2184

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Question number: 1621

» Oscillations and Waves » Displacement as a Function of Time

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MCQ▾

Question

A particle is performing simple harmonic motion along x-axis with amplitude 4 cm and time period 1.2 sec. The minimum time taken by the particle to move from x = 2 cm to x =+ 4 cm and back again is given by,

Choices

Choice (4) Response

a.

0.3 sec

b.

0.4 sec

c.

0.6 sec

d.

0.2 sec

Question number: 1622

» Oscillations and Waves » Simple Harmonic Motion » Energy

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MCQ▾

Question

A particle executes simple harmonic motion with a frequency f. The frequency with which its kinetic energy oscillates is

Choices

Choice (4) Response

a.

b.

f

c.

d.

Question number: 1623

» Oscillations and Waves » Simple Harmonic Motion » Force, Velocity, and Acceleration

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Consider motion for a mass spring system under gravity, motion of M is not a simple harmonic motion unless Mg is negligibly small.

Reason (Ꭱ)

For simple harmonic motion acceleration must be proportional to displacement and is directed towards the mean position.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question number: 1624

» Oscillations and Waves » Periodic Functions

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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 half the amplitude

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1625

» Oscillations and Waves » Periodic Motion - Period Frequency

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MCQ▾

Question

A simple pendulum is executing simple harmonic motion with a time period . If the length of the pendulum is increased by 15%, the percentage increase in the time period of the pendulum of is,

Choices

Choice (4) Response

a.

7.5%

b.

11%

c.

5%

d.

30%