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

Shape

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Size

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Neither shape nor size

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Shape and size

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Solution

The correct option is D
Shape and size

There will be both shear stress and normal stress.

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Paheli observed the shadow of a tree at 8:00 a.m., 12:00 noon and 3:00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow?

(a) The shape of the shadow of the tree changes but the size remains the same.

(b) The size of the shadow of the tree changes but the shape remains the same.

(d) Neither the shape nor the size of the shadow changes.

Q. A steel plate of face area 4 cm² and thickness 0.5 cm is fixed rigidly at the lower surface. A tangential force of 10 N is applied on the upper surface. Find the lateral displacement of the upper surface with respect to the lower surface. Rigidity modulus of steel = 8.4 × 10¹⁰ N m⁻².

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

Q. The lower surface of a cube is fixed. On its upper surface, force is applied at an angle of

30^{\circ}

from its surface. The change will be in its:

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

The correct option is D Shape and size There will be both shear stress and normal stress.

The correct option is D
Shape and size

There will be both shear stress and normal stress.