COMEDK 2025 Afternoon Shift | Elasticity Question 3 | Physics

One end of a nylon rope of length 1 and diameter 10 mm is fixed to free limb. A monkey weighing 100 N jumps to catch the free end and stays there. The change in diameter of the rope is (Young's modulus of the wire is Y and Poisson Ratio is $\sigma$ )

$\frac{4000 \sigma}{\pi Y}$

$\frac{400 \sigma}{\pi Y}$

$\frac{40000 \sigma}{\pi Y}$

$\frac{40000 \pi}{\sigma Y}$

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

The temperature of a wire is doubled. The Young's modulus of elasticity

Will decrease

Will also double

Will become four times

Will remain the same

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

-0

If the ratio of lengths, radii and Young's Moduli of steel and brass wires in the figure are $$\mathrm{a}, \mathrm{b}$$ and $$\mathrm{c}$$ respectively, then the corresponding ratio of increase in their lengths would be

COMEDK 2024 Morning Shift Physics - Elasticity Question 5 English

$$ \frac{a}{3 b^2 c} $$

$$ \frac{3 a}{2 b^2 c} $$

$$ \frac{2 a}{3 b^2 c} $$

$$ \frac{2 \mathrm{ab}^2}{c} $$

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

-0

Two wire of same material having radius in ratio 2 : 1 and lengths in ratio 1: 2. If same force is applied on them, then ratio of their change in length will be

$$1: 1$$

$$1: 2$$

$$1: 4$$

$$1: 8$$

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