NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1862 - 1864 of 5119

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Question 1862

Question MCQ▾

Two satellites S1 and S2 revolve round a planet in the same direction in circular orbits. Their periods of revolutions are 1 hour and 6 hour respectively. The radius of S1 is 1.5 ⨯ 105 km and the radius of S2 is 4.95 ⨯ 105 km. The velocity of S2 with respect to S1 is . The angular velocity of S2 as actually observed by an astronaut in S1 is –

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 1863

Question MCQ▾

In an experiment to determine an unknown resistance, a 100 cm long resistance wire is used. The unknown resistance is kept in the left gap and a known resistance is put into the right gap. The scale used to measure length has a least count 1 mm. The null point B is obtained at 40.0 cm from the left gap. Determine the percentage error in the computation of unknown resistance.

Choices

Choice (4)Response

a.

0.42%

b.

0.50%

c.

0.24%

d.

0.28%

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Question 1864

Question MCQ▾

Current gain is maximum in which of the following configuration of a transistor?

Choices

Choice (4)Response

a.

Common collector configuration

b.

Equal in both common emitter and common base configuration

c.

Common base configuration

d.

Common emitter configuration

Edit