UNITS AND MEASUREMENT(Dimensions and Dimensional formula)

π, e, sin θ, cos θ, tan θ etc... are which type of quantities ?

• Dimensional quantities

• Dimensionless quantities

• Dimensionless with no units

• Dimensional without units

Dimensional formula of angle (arc/radius) and angular displacement

• M⁰L⁰T⁰

• M¹L²T^-1

• L²T^-2

• MT^-2

What is the dimensional formula of latent heat ?

• MLT^-1

• M⁰L⁰T⁰

• M¹L¹T⁰

• M⁰L²T^-2

Dimensionless quantities are those which do not have dimensions and a fixed value.

• True

• False

Which physical quantities have the same dimension?

• Latent heat and Specific heat

• Couple of force and work

• Force and Power

• Work and Power