The pair of physical quantities that have the same dimension is (are) (1) Reynold's number and coefficient of friction (2) Curie and frequency of a light wave (3) Latent heat and gravitational potential (4) Planck's constant and torque

Question

The pair of physical quantities that have the same dimension is (are) (1) Reynold's number and coefficient of friction (2) Curie and frequency of a light wave (3) Latent heat and gravitational potential (4) Planck's constant and torque (A) 1, 2 and 3 are correct (B) 1 and 2 are correct (C) 2 and 4 are correct (D) 1 and 3 are correct

Tardigrade Admin · Accepted Answer

Reynold's number and coefficient of friction are dimensionless quantities. Curie is the number of atoms decaying per unit time and frequency is the number of oscillations per unit time. Latent heat and gravitational potential both have the same dimension corresponding to energy per unit mass.

Q. The pair of physical quantities that have the same dimension is (are) (1) Reynold's number and coefficient of friction (2) Curie and frequency of a light wave (3) Latent heat and gravitational potential (4) Planck's constant and torque

1, 2 and 3 are correct

1 and 2 are correct

2 and 4 are correct

1 and 3 are correct

Reynold's number and coefficient of friction are dimensionless quantities. Curie is the number of atoms decaying per unit time and frequency is the number of oscillations per unit time. Latent heat and gravitational potential both have the same dimension corresponding to energy per unit mass.