Which of the following component cannot detect visible light ________ .

Options

A. Photofilm
B. Photocell
C. Eye
D. None of the above

Explanation

To solve the question "Which of the following components cannot detect visible light?" we will analyze each of the options provided.

### Step 1: Understand the Options
The options given are:
1. Photo film
2. Photo cell
3. Eye
4. None of the above

### Step 2: Analyze Each Option
- **Photo Film**: Photo film is designed to capture images by reacting to light, including visible light. Therefore, it can detect visible light.

- **Photo Cell**: A photo cell, also known as a photocell or light sensor, is an electronic device that detects light levels. It can respond to visible light, so it can also detect visible light.

- **Eye**: The human eye is capable of detecting visible light. It is the organ responsible for vision and can perceive colors in the visible spectrum.

### Step 3: Determine the Correct Answer
Since all three components (photo film, photo cell, and eye) can detect visible light, we need to consider the last option:

- **None of the above**: This option implies that all the listed components can detect visible light.

### Conclusion
Since all the components listed can indeed detect visible light, the correct answer to the question is **None of the above**.

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