NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1588 - 1593 of 2184

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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:

Question number: 1588 (1 of 2 Based on Passage) Show Passage

» Oscillations and Waves » Simple Harmonic Motion » Energy

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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 m/s)

Choices

Choice (4) Response

a.

0 025 Joule

b.

0.08 Joule

c.

0.06 Joule

d.

0.1 Joule

Question number: 1589 (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.

0.3 sec.

b.

0.1 sec.

c.

0.4 sec.

d.

0.2 sec.

Question number: 1590

» Electronic Devices » Semiconductor Diode

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MCQ▾

Question

Which of the following materials are crystalline?

(1) Copper (2) Sodium chloride

(3) Diamond (4) Wood

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1,2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

Question number: 1591

» Electronic Devices » Semiconductors

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MCQ▾

Question

The energy band gap of Si is

Choices

Choice (4) Response

a.

0.70 eV

b.

1.1 eV

c.

Between 0.70 eV

d.

5eV

Question number: 1592

» Electronic Devices » Semiconductors

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Assertion-Reason▾

Question

Assertion (Ꭺ)

The temperature coefficient of resistance is positive for p-type semiconductors and negative for n-type semiconductors.

Reason (Ꭱ)

The effective charge carries in p-type semiconductors and holes and in n-type semiconductors are electrons.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

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: 1593

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

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MCQ▾

Question

Three masses 600g, 300g, and 200g are suspended at the end of a spring are in equilibrium. When the 600g mass is removed, the system oscillates with a period of 4 seconds, when the 300 gm mass is also removed, it will oscillate with a period of

Choices

Choice (4) Response

a.

2 s

b.

1 s

c.

d.

2.53 s