31 Year NEET Previous Year Questions: Mechanical Properties of Solids - NEET MCQ

# 31 Year NEET Previous Year Questions: Mechanical Properties of Solids - NEET MCQ

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## 5 Questions MCQ Test Physics Class 11 - 31 Year NEET Previous Year Questions: Mechanical Properties of Solids

31 Year NEET Previous Year Questions: Mechanical Properties of Solids for NEET 2024 is part of Physics Class 11 preparation. The 31 Year NEET Previous Year Questions: Mechanical Properties of Solids questions and answers have been prepared according to the NEET exam syllabus.The 31 Year NEET Previous Year Questions: Mechanical Properties of Solids MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Year NEET Previous Year Questions: Mechanical Properties of Solids below.
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31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 1

### Two wires A and B are of the same material. Their lengths are in the ratio 1 : 2 and the diameter are in the ratio 2 : 1. If they are pulled by the same force, then increase in length will be in the ratio

Detailed Solution for 31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 1

We know that Young's modulus

Since Y, F are same for both the wires, we have,

So,    ℓ1 : ℓ2 = 1 : 8

31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 2

### When an elastic material with Young’s modulus Y is subjected to stretching stress S, elastic energy stored per unit volume of the material is

Detailed Solution for 31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 2

Energy stored per unit volume

stress (stress / Young' s modulus)

(stress)2 /( Young ' s modulus)

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31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 3

### The compressibility of water is 4 × 10–5 per unit atmospheric pressure. The decrease in volume of 100 cm3 of water under a pressure of 100 atmosphere will be

Detailed Solution for 31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 3

Here, P = 100 atm,
K = 4 × 10–5  and V = 100 cm3.
Hence, ΔV = 0.4 cm3

31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 4

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

Detailed Solution for 31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 4

So, extension,

[∵ F and Y are constant]

The ratio of   is maximum for case (d).
Hence, option (d) is correct.

31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 5

If the ratio of diameters, lengths and Young’s modulus of steel and copper wires shown in the figure are p, q and s respectively, then the corresponding ratio of increase in their lengths would be [NEET Kar. 2013]

Detailed Solution for 31 Year NEET Previous Year Questions: Mechanical Properties of Solids - Question 5

From formula, Increase in length

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