What is the magnification of the eyepiece of the PCM scope?

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Prepare for the Air Monitoring Technician Test with flashcards and multiple choice questions. Each question includes hints and explanations to help you ace the exam!

Multiple Choice

What is the magnification of the eyepiece of the PCM scope?

Explanation:
The eyepiece magnification is the power of the ocular lens you look through, and in many PCM scopes it is a 10x ocular. This means the image is enlarged tenfold by the eyepiece before you even consider the objective lens. The total magnification you observe is the product of the eyepiece power and the objective power, so with a 4x objective you’d get 40x total, with a 10x objective 100x total, and so on. Other common eyepiece options like 5x, 15x, or 20x exist, but the standard PCM scope eyepiece is 10x, which is why 10x is the correct choice.

The eyepiece magnification is the power of the ocular lens you look through, and in many PCM scopes it is a 10x ocular. This means the image is enlarged tenfold by the eyepiece before you even consider the objective lens. The total magnification you observe is the product of the eyepiece power and the objective power, so with a 4x objective you’d get 40x total, with a 10x objective 100x total, and so on. Other common eyepiece options like 5x, 15x, or 20x exist, but the standard PCM scope eyepiece is 10x, which is why 10x is the correct choice.

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