Viscosity

Spherical soap bubble has

• Two surfaces

• Three surface

• One surface

• Both a & b

Spherical liquid drop has

• One surface

• Three surface

• Two surface

• All of the above

Viscous nature is high for

• Water

• Oil

• Both a & b

• None

Unit of viscosity is

• Nm

• Nms-²

• Nms

• Ns

Dimension for viscosity is

• ML-¹T-¹

• Mlt

• ML¹T-¹

• M¼T

Moment of inertia of the disc is proved by

• Perpendicular axis theorem

• Parallel axis theorem

• Mutual axis theorem

• Surface axis theorem