TS EAMCET Medical 8 May 2019 Shift 2 Paper

Question : 115 of 159

Marks: +1, -0

A monochromatic source of radiation is operating at 100 W power. The source emits 2 × 1020 photons per second. The wavelength of light will be (h = 6.67 × 10−34 J s)