Shear Modulus

Q.

Modulus of rigidity of diamond is

1. Too less

2. Greater than all matters

3. Less than all matters

4. Zero

Q. Two wires A and B of same length and of the same material have the respective radii $r_1$ and $r_2$. Their one end is fixed with a rigid support, and at the other end equal twisting couple is applied. Then the ratio of the angle of twist at the end of A and the angle of twist at the end of B will be

1. 
2. 
3. 
4. 

Q.

Modulus of rigidity of a liquid

1. Non zero constant

2. Infinite

3. Nearly Zero

4. Can not be predicted

Q. Shear stress gets developed when:

1. The force is applied perpendicular to the cross-section.
2. The force is applied parallel to the cross-section.
3. Can't Comment

Q.

The ratio of lengths of two rods A and B of same material is 1 : 2 and the ratio of their radii is 2 : 1, then the ratio of modulus of rigidity of A and B will be

1. 4 : 1

2. 16 : 1

3. 8 : 1

4. 1 : 1

Q.

The lower surface of a cube is fixed. On its upper surface, force is applied at an angle of 30° from its surface. The change will be of the type

1. Size

2. Neither shape nor size

3. Shape and size

4. Shape

Q. Two rods A and B of the same material and length have their radii $r_1$ and $r_2$ respectively. When they are rigidly fixed at one end and twisted by the same couple applied at the other end, the ratio of the angle of twist at the end of A and the angle of twist at the end of B is

1. 
2. 
3. 
4. 

Q.

Modulus of rigidity of a liquid

1. Non zero constant

2. Infinite

3. Nearly Zero

4. Can not be predicted

Q. Two wires A and B of same length and of the same material have the respective radii $r_1$ and $r_2$. Their one end is fixed with a rigid support, and at the other end equal twisting couple is applied. Then the ratio of the angle of twist at the end of A and the angle of twist at the end of B will be

1. 
2. 
3. 
4. 

Q.

The ratio of lengths of two rods A and B of same material is 1 : 2 and the ratio of their radii is 2 : 1, then the ratio of modulus of rigidity of A and B will be

1. 4 : 1

2. 16 : 1

3. 8 : 1

4. 1 : 1