Question

1. A small metal plate (work function = 1.17 eV) is placed at a distance of 2 m from a monochromatic light source of wavelength 4.8 x 10-7 m and power 20 watt. The light falls normally on the plate. The number of photons striking the metal plate per second per sq metre area will be




plz anyone solve it immediately ​

Answer 1

Answer:

ok

Explanation:

hi