NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2109 - 2112 of 2320

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Question number: 2109

» Oscillations and Waves » Doppler Effect in Sound

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Appeared in Year: 2017

MCQ▾

Question

Two cars moving in opposite directions approach each other with speed of and respectively. The driver of the first car blows a horn having a frequency . The frequency heard by the driver of the second car is [velocity of sound ]:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2110

» Kinematics » Relative Velocity

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Appeared in Year: 2017

MCQ▾

Question

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time . On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time. The time taken by her to walk up on the moving escalator will be:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2111

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

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Appeared in Year: 2017

MCQ▾

Question

Figure shows a circuit that contains three identical resistors with resistance each, two identical inductors with inductance each and an ideal battery with emf . The current through the battery just after the switch closed is –

Circuit diagram consist of three resistors

Circuit Diagram Consist of Three Resistors

In figure circuit diagram consists of three resistors, two inductors and a capacitor, is shown.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 2112

» Gravitation » Universal Law of Gravitation

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Appeared in Year: 2017

MCQ▾

Question

Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will –

Choices

Choice (4)Response

a.

Move towards each other

b.

Keep floating at the same distance between them

c.

Will become stationary

d.

Move away from each other

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