Question

Match column 1 with 2.

Column 1	Column 2
(A) A body which regains its original shape after the removal	(P) elasticity
(B) A body which does not regains its original shape after the removal	(Q) Elastic body
(C) A body which does not show any deformation on applying external forces	(R) Plastic body
(D) The property of the body to regain its original configuration when the deformation forces are removed.	(S) Rigid body

A) A-Q, B-R, C-S, D-P
B)A-P, B-P, C-R, D-S
C)A-R, B-S, C-P, D-Q
D)A-S, B-P, C-Q, D-R

Answer 1

Hint: The property of a body to recapture its unique shape when the disfiguring power is eliminated from it or to contradict the adjustment in its unique shape is called flexibility.

The property of a body to recover its unique design (i.e., shape and size) when the misshaping power is taken out is called flexibility. A body, which recaptures its unique setup quickly and totally after the expulsion of the misshaping power is known as a completely versatile body.

Complete step by step answer:
A) A body which regains its original shape after the removal
The ability of a deformed material body to return to its original shape and size when the forces causing the deformation are removed. A body with this ability is said to behave as an elastic body.
$\therefore $ A body which regains its original shape after the removal is an elastic body.

B) A body which does not regains its original shape after the removal
When a body is acted upon by deforming the forces the shape and /or size of the body changes. But, if the deforming forces are removed, the body retains its new shape and size. Such a body is called a plastic body and the property is called plasticity. For example, plaster of Paris, clay, mud, plastic, etc.
Due to no or negligible internal elastic force or restoring force they cannot regain original shape but retain their new shape.
Plastic body or pliancy describes the misshapen of a strong material going through non-reversible changes of shape in light of applied powers.
$\therefore $ A body which does not regain its original shape after the removal is a plastic body.

C) A body which does not show any deformation on applying external forces
When a body is acted upon by deforming forces, the shape and size of the body do not get altered, whatever may be the magnitude of the deforming forces. Such a body is called a rigid body and the property is known as rigidity.
In rigid bodies, the internal force of attraction is so high that there is no relative motion between two particles of the body. Hence there are no changes in the shape of the body.
$\therefore $ A body which does not show any original shape after the removal is a plastic body is a rigid body.

D) The property of the body to regain its original configuration when the deformation forces are removed.
The property by virtue of which material bodies regain their original dimensions (size, shape or both) after removal of the deforming force is called elasticity. The material exhibiting elasticity is called elastic material and the body is called the elastic body. For example, rubber, steel, aluminum, sponge etc.
When the body is stretched the interatomic spacing increases and when it is compressed the inter-atomic spacing decreases. In both cases, internal restoring forces are created in the body which tend to restore the atoms back to their original positions.
$\therefore $ The property of the body to regain its original configuration when the deformation forces are reformed is elasticity.

$\therefore $ The option (A) A-Q, B-R, C-S, D-P is the correct answer.

Note: The general inflexible body movement between two solids making contact may include both interpretation and pivot, each with three segments settled along the ordinary and digression to the plane of contact. As a rule of interest, the typical part of the overall interpretation is taken to be zero (steady ordinary burden and misshapen). Also, one of the two parts of turn in the digression plane that offers ascend to "rolling" is taken as zero (abounding in one course) is estimated by rate, while flexibility is estimated by the proportion of two rates, and since proportion is another type of rate, the idea of versatility, indeed, is a mix of three distinct rates.