Physics Question on Einstein’S Photoelectric Equation: Energy Quantum Of Radiation

Question

The wavelength of visible light for the green color is 600 𝑛𝑚. The energy of photons of this color is _______ 𝑒𝑉 (rounded off to one decimal place). (Planck’s constant = $6.63 × 10^{−34} 𝐽𝑠, 1 𝑒𝑉 = 1.6 × 10^{−19} 𝐽$ , speed of light = $3 × 10^8 𝑚𝑠^{−1}$ )

Accepted Answer

The Correct answer is :2.2