NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 802 - 805 of 2320

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Question number: 802

» Work, Energy and Power » Work Done

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MCQ▾

Question

The work done in pulling a body of mass 3 kg along an inclined plane (angle 50°) with coefficient of friction 0.2 through 2 m, will be -

Choices

Choice (4)Response

a.

98.08 J

b.

52.56 J

c.

91.08 J

d.

94.08 J

Question number: 803

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

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Assertion-Reason▾

Question

Assertion (Ꭺ)

The induced e. m. f. and current will be same in two identical loops of copper and aluminum, when rotated with same speed in the same magnetic field.

Reason (Ꭱ)

Induced e. m. f. is proportional to rate of change of magnetic field while induced current depends on resistance of wire.

Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 804

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

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MCQ▾

Question

A current of 5A is flowing at 220 V in the primary coil of a transformer. If the voltage produced in the secondary coil is 2200V and 50 % of power is lost, then the current in the secondary coil will be -

Choices

Choice (4)Response

a.

5A

b.

0.025A

c.

2.5A

d.

0.25A

Question number: 805

» Laws of Motion » Force and Inertia

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MCQ▾

Question

What is the tension in a rod of length L and mass M at a distance y from F, when the rod is acted on by two unequal forces F1 and F2 (

Tension in a rod of length L and mass M

Tension in a Rod of Length L and Mass M

Choices

Choice (4)Response

a.

b.

c.

d.

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