The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?

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The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?

Option A length = 300 cm, diameter = 3 mm
Option B length = 50 cm, diameter = 0.5 mm
Option C length = 100cm, diameter = 1 mm
Option D length = 200 cm, diameter = 2 mm

Solution

The correct option is Option B.

After making all the comparisons, the most appropriate choice is for ℓ = 50 cm & diameter = 0.5 mm

i

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More Material

The refractive index of glass is $1.5$ . What is the speed of light in glass? Speed of light in vacuum is $3.0 \times 10^{\mathrm{A}} \mathrm{ms}^{-1}$ .

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A $-10 \Omega$
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