Calculate the wavelength of light incident on a material of work function 2.0 eV if the stopping potential is 1.0 V .
Given `h = 6.625 xx10^(-34)` Js and mass of electron `=9.1xx10^(-31) kg`

Explanation

To calculate the wavelength of light incident on a material with a work function of 2.0 eV and a stopping potential of 1.0 V, we can use the photoelectric effect equation. Here’s a step-by-step solution:

### Step 1: Understand the Photoelectric Equation
The maximum kinetic energy (K.E.) of the emitted electrons can be expressed as:
\[ K.E. = E - \phi \]
where \( E \) is the energy of the incident photons and \( \phi \) is the work function of the material.

### Step 2: Convert Work Function from eV to Joules
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