Home > Astrophysics > The Electromagnetic Spectrum

How does spectrometry detect the electromagnetic spectrum?

Answer 1

Devices that produce a signal are used to indicate when different types of electromagnetic waves impinge on them.

A radio receiver is an example of a passive detector; an interferometer can be either passive or active; telescopes are passive visible light detectors. Electromagnetic detection uses passive or active detectors that indicate when a specific wavelength interacts with them.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Parker Albertson

Spectrometry detects the electromagnetic spectrum by measuring the intensity of electromagnetic radiation at different wavelengths. This is typically done using a spectrometer, which separates incoming radiation into its constituent wavelengths and measures the intensity of each wavelength. The process involves passing the radiation through a slit to narrow its focus, then through a prism or diffraction grating to separate the wavelengths, and finally onto a detector which records the intensity at each wavelength.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.