Properties of Solids & Liquids-Young's Modulus (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 1 of 1

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Question number: 1

» Properties of Solids & Liquids » Young's Modulus

Appeared in Year: 2015

MCQ▾

Question

A horizontal steel railroad track has a length of 100 m when the temperature is 250 C. The track is constrained from expanding or bending. The stress on the track on a hot summer day, when the temperature is 400 C, is –

(Note: the linear coefficient of thermal expansion for steel is 1.1×105/0C and the Young’s modulus of steel is 2×1011Pa )

Choices

Choice (4) Response

a.

8.8×107Pa

b.

5.5×107Pa

c.

3.3×107Pa

d.

6.6×107Pa

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