The area of cross-section of a wire of length 1.1 m is 1 mm2. It is loaded with 1 kg. If Young's modulus of wire is 1.1 × 1011 N/m2, then the increase in length will be (if g = 10 m/s2)

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Questions Match

1.
The area of cross-section of a wire of length 1.1 m is 1 mm². It is loaded with 1 kg. If Young's modulus of wire is 1.1 × 10¹¹ N/m², then the increase in length will be (if g = 10 m/s²)

1. 0.01 mm2. 0.075 mm3. 0.1 mm4. 0.15 mm

2.
Calculate the area under the curve y = x² and X axis from x = –1 m to x = +1 m

1. 2. 3. 4.

3.
An object is dropped from height 15 m. Object is embedded in sand 1 m and stops, then

1. Only momentum of system remains conserved2. Only kinetic energy remains conserved3. Both momentum and kinetic energy are conserved4. Neither kinetic energy nor momentum is conserved

4.
A 1 m long rod has a mass of 0.12 kg. What is the moment of inertia about an axis passing through the centre and perpendicular to the length of rod

1. 0.01 kg-m22. 0.001 kg-m23. 1 kg-m24. 10 kg-m2

5.
Concentrated aq. sulphuric acid is 98% H₂SO₄ by mass and has density 1.8 gmL^–1. Volume of acid required to make 1 L of 0.1 M H₂SO₄ is

1. 5.55 mL2. 11.10 mL3. 16.65 mL4. 22.20 mL

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The area of cross-section of a wire of length 1.1 m is 1 mm2. It is loaded with 1 kg. If Young's modulus of wire is 1.1 × 1011 N/m2, then the increase in length will be (if g = 10 m/s2)