One metal sphere of radius r of material with threshold frequency `v_0` is kept isolated and light of frequency v is incident on it. Frequency of the incident light is more than the threshold frequency of material. Find the maximum number of electrons which can be emitted from the sphere.

Explanation

To solve the problem of finding the maximum number of electrons that can be emitted from a metal sphere when light of frequency \( v \) is incident on it, we can follow these steps:

### Step 1: Understand the Photoelectric Effect
When light of frequency \( v \) is incident on a metal surface, if the frequency is greater than the threshold frequency \( v_0 \), electrons can be emitted from the metal due to the photoelectric effect. The energy of the incident photons is given by \( E = h\nu \), where \( h \) is Planck's constant.

**Hint:** Remember that the photoelectric effect only occurs when the frequency of the incident light exceeds the threshold frequency.

### Step 2: Apply Einstein's Photoelectric Equation
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