NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1723 - 1728 of 2184

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Question number: 1723

» Oscillations and Waves » Longitudinal and Transverse Waves

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MCQ▾

Question

In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.130 second. The frequency of the wave is,

Choices

Choice (4) Response

a.

1.73 Hz

b.

1.92 Hz

c.

1.785 Hz

d.

2.47 Hz

Question number: 1724

» Oscillations and Waves » Periodic Functions

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MCQ▾

Question

The minimum, possible time period

Choices

Choice (4) Response

a.

0.1 sec

b.

0.3 sec.

c.

0.2 sec.

d.

0.4 sec.

Question number: 1725

» Oscillations and Waves » Simple Pendulum

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Assertion-Reason▾

Question

Assertion (Ꭺ)

given The percentage change in time period is 1.5 % if the length of simple pendulum increases by 3

Reason (Ꭱ)

Time period is directly proportional to length of pendulum

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.

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

d.

Ꭺ is false but Ꭱ is true

Passage

A particle performs linear SHM such that it is placed on platform1 & platform 2 along with particles up and down with amplitude A =1 cm. If the particle does not loose contact with platform anywhere and mass of particle is 1 kg, find out:

Question number: 1726 (1 of 2 Based on Passage) Show Passage

» Oscillations and Waves » Periodic Functions

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MCQ▾

Question

For minimum time period condition average potential energy between t = 0 to t = 0.05 sec (Take g = 10

Choices

Choice (4) Response

a.

0.1 Joule

b.

0.06 Joule

c.

0.08 Joule

d.

0 025 Joule

Question number: 1727 (2 of 2 Based on Passage) Show Passage

» Oscillations and Waves » Periodic Functions

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MCQ▾

Question

The minimum, possible time period

Choices

Choice (4) Response

a.

0.1 second.

b.

0.4 second.

c.

0.3 second.

d.

0.2 second.

Question number: 1728

» Oscillations and Waves » Speed of a Wave

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MCQ▾

Question

V 1 and V 2 are the velocities of sound at the same temperature in two monoatomic gases of densities ρ 1 and ρ 2 respectively. If then the ratio of velocities V 1 and V 2 will be,

Choices

Choice (4) Response

a.

4: 1

b.

1: 2

c.

2: 1

d.

1: 4