NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1583 - 1587 of 2184

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Question number: 1583

» Electronic Devices » Semiconductors

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MCQ▾

Question

Electronic configuration of germanium is 2,8, 18 and 4. To make it extrinsic semiconductor small quantity of antimony is added,

Choices

Choice (4) Response

a.

The material obtained will be N-type germanium which has less electrons than holes at room temperature

b.

The material obtained will be N-type germanium in which electrons and holes are equal in number

c.

The material obtained will be N-type germanium which has more electrons than holes at room temperature

d.

The material obtained will be P-type germanium

Question number: 1584

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

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MCQ▾

Question

The periodic time of a body executing simple harmonic motion is 5 sec. After how much time from time t = 0, its displacement will be half of its amplitude

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1585

» Oscillations and Waves » Simple Harmonic Motion » Energy

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MCQ▾

Question

When the displacement is half the amplitude, the ratio of potential energy to the total energy is

Choices

Choice (4) Response

a.

b.

c.

1

d.

Question number: 1586

» Oscillations and Waves » Periodic Functions

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MCQ▾

Question

What is the maximum acceleration of the particle doing the SHM where y is in cm?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1587

» Oscillations and Waves » Simple Pendulum

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MCQ▾

Question

A simple pendulum consisting of a ball of mass m tied to a thread of length l is made to swing on a circular arc of angle θ in a vertical plane. At the end of this arc, another ball of mass m is placed at rest. The momentum transferred to this ball at rest by the swinging ball is

Choices

Choice (4) Response

a.

b.

Non zero

c.

Zero

d.