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Wavelength-Selective Source Properties Quiz

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Wavelength-Selective Source Properties Quiz

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Questions and Answers

What are the main properties a source should have to be used in a selected range of wavelength?

Produce stable output with minimal intensity fluctuation (correct)

Generate radiation outside the desired wavelength range

Use a single beam instead of a double beam

Produce fluctuating beam intensity

Why is it important for a source in the visible region to generate light in the entire visible range (340-780 nm)?

It eliminates the need for double beam correction

It ensures stable output with minimal intensity fluctuation (correct)

It allows for radiation outside the visible range

It creates excessive radiant power

How can the fluctuation of beam intensity be reduced?

By generating excessive radiant power

By using a single beam instead of a double beam

By using double beam instead of a single beam (correct)

By having unstable output with significant intensity fluctuation

In what way does using a double beam instead of a single beam help in overcoming the fluctuation of beam intensity?

<p>It gives correction for the fluctuation of beam intensity and provides better results</p> Signup and view all the answers

Why should a source to be used in a selected range of wavelength have enough and suitable radiant power?

<p>To ensure stable output with minimal intensity fluctuation</p> Signup and view all the answers

Study Notes

Source Properties for a Selected Range of Wavelength

A source should have a stable and constant output intensity to ensure reliable measurements.
A source should generate light in the entire visible range (340-780 nm) for applications in the visible region, as this range covers the entire human visual spectrum.

Importance of Stable Beam Intensity

Fluctuation of beam intensity can lead to inaccurate measurements and poor data quality.
Reducing beam intensity fluctuation is crucial to ensure reliable and consistent results.

Reducing Beam Intensity Fluctuation

Using a double beam setup instead of a single beam can help reduce beam intensity fluctuation.
A double beam setup splits the beam into two paths, allowing for simultaneous measurement of the sample and a reference, which helps to cancel out any intensity fluctuations.

Radiant Power Requirements

A source should have enough and suitable radiant power to ensure sufficient signal strength for accurate measurements.
Adequate radiant power is necessary to overcome losses in the optical system and to detect weak signals.

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Description

Test your knowledge of properties that a source must have to be used in a selected range of wavelengths, including generating radiation covering the specific wavelength range, providing suitable radiant power, and ensuring stable output with minimal intensity fluctuations over time.