In an experiment on photoelectric effect, the slope of the cut off voltage versus frequency of incident light is found to be `4.12xx10^(-15)Vs`. Given `e=1.6xx10^(-19)C`, estimate the value of Planck's constant.

Explanation

To estimate the value of Planck's constant using the given data from the photoelectric effect experiment, we can follow these steps:

### Step-by-Step Solution

1. **Understand the Relationship**:
The slope of the graph of cutoff voltage (V) versus frequency (ν) of incident light is given by the formula:
\[
\text{slope} = \frac{h}{e}
...