Light of wavelength `lambda` shines on a metal surface with intensity X and the metal emit Y electron per second of average energy Z what will happen to Y and Z if X is doubled ?

Options

A. Y will be doubled and Z will become half
B. Y will remain same and Z will be doubled
C. Both Y and Z will be doubled
D. Y will be doubled but Z will be remain same

Explanation

To solve the problem, we need to analyze how the intensity of light affects the number of emitted electrons (Y) and their average energy (Z) when the intensity (X) is doubled.

### Step-by-Step Solution:

1. **Understanding the relationship between intensity and emitted electrons**:
- The intensity (X) of light is directly proportional to the number of photons striking the metal surface per second. This means that if the intensity is increased, more photons will hit the surface.
- The number of photoelectrons emitted (Y) is directly proportional to the intensity of the light. Therefore, if the intensity is doubled, the number of emitted electrons will also double.

...