NDA 2018 Paper 1 | Physics Question 147 | General Science

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NDA 2018 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

Which one of the following statement is correct?

Any energy transfer that does not involve temperature difference in some way is not heat.

Any energy transfer always requires a temperature difference.

On heating, the length and volume of the object remain exactly the same.

Whenever there is a temperature difference, heat is the only way of energy transfer.

NDA 2018 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

If T is the time period of an oscillating pendulum, then which one of the following statement is not correct?

The motion repeats after time T only once.

T is the least time after which motion repeats itself.

The motion repeats itself after nT, where n is a positive integer.

T remains the same only for small angular displacements.

NDA 2018 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

If an object moves with constant velocity, then which one of the following statement is not correct?

Its motion is along a straight line.

Its speed changes with time.

Its acceleration is zero.

Its displacement increases linearly with time.

NDA 2018 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

An object is moving with uniform acceleration a. Its initial velocity is u and after time t, its velocity is v. The equation of its motion is v = u + at. The velocity (along Y - axis) - time (along X-axis) graph will be a straight line

passing through origin

with X-intercept u

with Y-intercept u

with slope u

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Questions Asked from Marks 2.5