Find the radius of curvature of the convex surface of a plan-convex lens, whose focal length is 0.3 m and the refractive index of the material of the lens is 1.5.

Explanation

To find the radius of curvature of the convex surface of a plano-convex lens, we can use the lens maker's formula. Here’s the step-by-step solution:

### Step 1: Write down the lens maker's formula
The lens maker's formula is given by:
\[ \frac{1}{f} = (\mu - 1) \left( \frac{1}{R_1} - \frac{1}{R_2} \right) \]
where:
...