The coefficient of superficial expansion of a solid is 2 × 10–5 /°C. It's coefficient of linear expansion is

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Questions Match

1.
The coefficient of superficial expansion of a solid is 2 × 10^–5 /°C. It's coefficient of linear expansion is

1. 4 × 10–5/°C2. 3 × 10–5/°C3. 2 × 10–5/°C4. 1 × 10–5/°C

2.
A solid sphere disc of 500 g and radius 10 cm has moment of inertia (about its natural axis)

1. 2.5 × 10–3 kg-m22. 2 × 10–3 kg-m23. 5 × 10–3 kg-m24. 3.5 × 10–3 kg-m2

3.
The moment of inertia of a solid sphere of radius R and mass M about a tangent to the sphere is

1. 2. 3. 4.

4.
A solid sphere of mass 1000 g and radius 10 cm rolls without slipping with the velocity 20 cm/s. The total kinetic energy of the sphere will be

1. 28 × 10–3 J2. 5.2 × 10–2 J3. 14 J4. 25 J

5.
A solid spherical ball rolls on an inclined plane without slipping. The ratio of rotational energy and total energy is

1. 2. 3. 4.

The coefficient of superficial expansion of a solid is 2 × 10–5 /°C. It's coefficient of linear expansion is