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The following four wires of length L and the radius r are made of same material. Which of these will have the largest extension when the same tension is applied. (CPMT 90) (a) L = 50 cm, r = 0.25 mm (b) L = 100 cm, r = 0.5 mm (c) L = 200 cm, r = 1 mm (d) L = 3000 cm, r = 1.5 mm

The following four wires of length L and the radius r are made of same material. Which of these will have the largest extension when the same tension is applied. (CPMT 90) (a) L = 50 cm, r = 0.25 mm (b) L = 100 cm, r = 0.5 mm (c) L = 200 cm, r = 1 mm (d) L = 3000 cm, r = 1.5 mm

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The following four wires of length L and the radius r are made of same material. Which of these will have the largest extension when the same tension is applied. (CPMT 90)

(a) L = 50 cm, r = 0.25 mm

(b) L = 100 cm, r = 0.5 mm

(c) L = 200 cm, r = 1 mm

(d) L = 3000 cm, r = 1.5 mm

Answer: (d)

In an experiment to determine the Young’s modulus of the material of a wire, the length of the wire and the suspended mass are doubled. Then the Young’s modulus of the wire

(a) Becomes double (b) Becomes four time

(c) Remain unchanged(d) Becomes half

Answer: (c)

 

I NEED TYPED SOLUTION OF BOTH QUESTION NOT HANDWRITTEN PLEASE 

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