# Hold at rest

**Classical Mechanics**Level 3

Find the maximum wavelength of light in nano-meters that can cause photoelectric effect in silver? Enter the integer part of your answer.

**Details And Assumptions:**

Planck's constant \(= 4.14 \times 10^{-15} \text{ eVs}\).

Speed of light \(=3\times 10^{8} \text{ m s}^{-1}\).

Work function of silver \(=4.7 \text{ eV}\).