Question

The lower surface of a cube is fixed. On its upper surface, force is applied at an angle of 30∘ from the surface. The change will be in its:

• A. size
• B. volume
• C. shape
• D. both shape and size

Answer 1

The correct option is D

both shape and size

The correct answer is (D)

The Explanation for the correct option:

1. When the force is applied, the cube is compressed as shear stress and normal stress act on it.
2. Hence the change in both shape and size can be seen.
3. Hence The correct answer is (D)

The Explanation for the incorrect options:

Option (A):

1. Size is the measuring factor. so it is not matched with the arrived result.
2. Hence, option (A) is the incorrect answer.

Option (B):

1. Volume is another measuring formula. so it is not matched with the arrived result.
2. Hence, option (B) is the incorrect answer.

Option (C):

1. Shape is another measuring item. so it is not matched with the arrived result.
2. Hence, option (C) is the incorrect answer.