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Question (1)

QN0035495

The force exerted by a special compression device is given as function of compression as for , where is maximum possible compression and is a constant. The force exerted by the device under compression is maximum when compression is -

(A)
0
(B)
(C)
(D)

Correct Answer: D

Explanation:

at

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Question (2)

QN0035496

The potential energy between two atoms in a diatomic molecules as a function of the distance between atoms has been shown in the figure. The atoms are

(A)
attracted when lies between A and and are repelled when lies between and
(B)
attracted when lies between and and are repelled when lies between and
(C)
are attracted when they reach from
(D)
are repelled when they reach from

Correct Answer: B

Explanation:

The atoms when brought from infinity are attracted due to interatomic electrostatic force of attraction. At point , the potential energy is minimum and force of attraction is maximum. P.E. But if we bring atoms closer than , force of repulsion between two nucleii starts and P.E. increases.

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Question (3)

QN0035497

What is the phenomenon of temporary delay in regaining the original configuration by an elastic body, after the removel of a deforming force?

(A)
Elastic fatigue
(B)
Elasticity
(C)
Plasticity
(D)
Elastic after effect

Correct Answer: D

Explanation:

Elastic after effect is defined as the temporary delay in regaining the original configuration by an elastic body after the removal of a deforming force.

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Question (4)

QN0035498

When forces are applied on a body such that it is still in static equilibrium, then the extent to which the body gets deformed, depends on

(A)
nature of the material
(B)
magnitude of deforming force
(C)
Both (a) & (b)
(D)
None of these

Correct Answer: C

Explanation:

The deformation of a body on application of a force depends on the nature of the material and the magnitude of the applied force.

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Question (1)

The force exerted by a special compression device is given as function of compression as for , where is maximum possible compression and is a constant. The force exerted by the device under compression is maximum when compression is -

Explanation:

Link:

Question (2)

The potential energy between two atoms in a diatomic molecules as a function of the distance between atoms has been shown in the figure. The atoms are

Explanation:

Link:

Question (3)

What is the phenomenon of temporary delay in regaining the original configuration by an elastic body, after the removel of a deforming force?

Explanation:

Link:

Question (4)

When forces are applied on a body such that it is still in static equilibrium, then the extent to which the body gets deformed, depends on

Explanation:

Link:

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