If the threshold frequency of a metal for photoelectric effect is `v_(0)` then which of the following will not happen ?

Options

A. (1) If the frequency of the incident radiation in `v_(0)`, then the kinetic energy of the electrons ejected is zero
B. (2) If the frequency of the incident radiation in v, then the kinetic energy of the electrons ejected will be `hv- hv_(0)`
C. (3) If the frequency is kept same at v but intesity is increased, then the number of electrons ejected will increases
D. (4) If the frequency of the incident radiation is further increasesed, then the number of photoelectrons ejected will increases

Explanation

To solve the question, we need to analyze the options given regarding the photoelectric effect and the threshold frequency of a metal, denoted as \( v_0 \).

### Step-by-Step Solution:

1. **Understanding the Threshold Frequency**:
- The threshold frequency \( v_0 \) is the minimum frequency of incident light required to eject electrons from the surface of a metal. If the frequency of the incident light is equal to \( v_0 \), the kinetic energy of the emitted electrons will be zero.

2. **Analyzing Option 1**:
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