NEET 2018 | NEET Year Wise Previous Years Questions

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area A and the second wire has cross-sectional area 3A. If the length of the first wire is increased by $$\Delta $$l on applying a force F, how much force is needed to stretch the second wire by the same amount?

NEET 2018

MCQ (Single Correct Answer)

-1

The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is NEET 2018 Physics - Heat and Thermodynamics Question 30 English

NEET 2018 Physics - Heat and Thermodynamics Question 30 English

$${2 \over 5}$$

$${2 \over 3}$$

$${1 \over 3}$$

$${2 \over 7}$$

NEET 2018

MCQ (Single Correct Answer)

-1

If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct?

Raindrops will fall faster.

Walking on the ground would become more difficult.

Time period of a simple pendulum on the Earth would decrease.

g on the Earth will not change.

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