Light with an energy flux of 18 W/cm² falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is
A
2 N/m²
B
2 × 10⁻⁴ N/m²
C
6 N/m²
D
6 × 10⁻⁴ N/m²

Question

Light with an energy flux of 18 W/cm² falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is

Accepted Answer

6 × 10⁻⁴ N/m²

Answer

2 N/m²

Answer

2 × 10⁻⁴ N/m²

Answer

6 N/m²

AIIMS 2009 Physics Radiation Pressure MCQ Question