What is the condition for the nth secondary minima in case of diffraction from a single slit?

Explanation

To find the condition for the nth secondary minima in the case of diffraction from a single slit, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Intensity Formula**:
The intensity of light in single slit diffraction is given by the formula:
\[
I = I_0 \frac{\sin^2 \beta}{\beta^2}
...