Question

Calculate the angular momentum of a particle of mass 5 mg revolving about a circle of radius 60 cm with a speed of 2 km/s. 

विकल्प

• 1 × 10⁻³ kg m² s⁻¹

• 4 × 10⁻³ kg m² s⁻¹

• 6 × 10⁻³ kg m² s⁻¹

• 6 × 10⁻⁴ kg m² s⁻¹

Answer 1

6 × 10⁻³ kg m² s⁻¹

Explanation:

L = mvr = 5 × 10⁻⁶ × 2 × 10³ × 60 × 10⁻²

= 6 × 10⁻³ kg m² s⁻¹