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. |
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% |
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 |