NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1739 - 1743 of 2184

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Question number: 1739

» Oscillations and Waves » Resonance

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MCQ▾

Question

Amplitude of a wave is represented by . Then resonance will occur when

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 1740

» Oscillations and Waves » Speed of a Wave

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MCQ▾

Question

A transverse wave is represented by the equation , Here v = wave velocity. For what value of x, the maximum particle velocity equal to two times the wave velocity

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1741

» 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.

5%

b.

7.5%

c.

30%

d.

11%

Question number: 1742

» Oscillations and Waves » Longitudinal and Transverse Waves

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Particle velocity and wave velocity both are independent of time.

Reason (Ꭱ)

For the propagation of wave motion in medium, the medium must have the properties of elasticity and inertia.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

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

Question number: 1743

» Oscillations and Waves » Simple Pendulum

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MCQ▾

Question

The bob of a pendulum of length l is pulled aside from its equilibrium position through an angle θ and then released. The bob will then pass through its equilibrium position with a speed v, where v equals

Choices

Choice (4) Response

a.

b.

c.

d.