Photon of which light has maximum energy :

Options

A. Red
B. Blue
C. Violet
D. Green

Answer

To determine which photon of light has maximum energy, we can follow these steps:

### Step 1: Understand the relationship between energy, frequency, and wavelength
The energy (E) of a photon is related to its frequency (ν) and wavelength (λ) by the equation:
\[ E = h \cdot \nu \]
where \( h \) is Planck's constant. Additionally, the speed of light (c) relates frequency and wavelength:
\[ c = \lambda \cdot \nu \]
From this, we can express energy in terms of wavelength:
\[ E = \frac{h \cdot c}{\lambda} \]

### Step 2: Analyze the relationship between wavelength and energy
From the equation \( E = \frac{h \cdot c}{\lambda} \), we can see that energy is inversely proportional to wavelength. This means that as the wavelength decreases, the energy increases.

### Step 3: Compare the wavelengths of different colors of light
The visible spectrum includes various colors of light, each with a different wavelength:
- Red light has the longest wavelength (~620-750 nm)
- Green light has a medium wavelength (~495-570 nm)
- Blue light has a shorter wavelength (~450-495 nm)
- Violet light has the shortest wavelength (~380-450 nm)

### Step 4: Determine which color has the shortest wavelength
Since violet light has the shortest wavelength among the colors listed, it will have the highest energy according to the relationship established in Step 2.

### Step 5: Conclude the answer
Therefore, the photon of violet light has the maximum energy compared to red, green, and blue light.

### Final Answer:
The photon of violet light has maximum energy.

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