A(n) __________ is both an image-recording device and a photometer.
A) interferometer
B) spectrograph
C) CCD
D) primary mirror
E) Newtonian focus

Question

Quizplus · Accepted Answer

A CCD (charge-coupled device) is a type of camera sensor that not only records images, but can also measure the brightness of light in each pixel. This makes it both an image-recording device and a photometer. Interferometers are used for measuring the properties of light and do not record images directly. Spectrographs are used to disperse light into its component wavelengths for analysis. Primary mirrors and Newtonian focuses are components of telescopes, but do not have the capabilities of a CCD camera.

A(n) __________ Is Both an Image-Recording Device and a Photometer