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A wire is suspended from the ceiling and stretched under the action of a weight F suspended from its other end. The force exerted by the ceiling on it is equal and opposite to the weight.
A wire is suspended from the ceiling and stretched under the action of a weight F suspended from its other end. The force exerted by the ceiling on it is equal and opposite to the weight.
CBSE | Class 11 | Mechanical Properties of Solids | NCERT Exemplar | Physics
A wire is suspended from the ceiling and stretched under the action of a weight F suspended from its other end. The force exerted by the ceiling on it is equal and opposite to the weight.

a) tensile stress at any cross-section A of the wire is F/A

b) tensile stress at any cross-section is zero

c) tensile stress at any cross-section A of the wire is 2F/A

d) tension at any cross-section A of the wire is F

Answer:

The correct answers are

a) tensile stress at any cross-section A of the wire is F/A

d) tension at any cross-section A of the wire is F

These can be obtained by making use of the relation => Stress

i

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