The Chandra X-ray Observatory must use:
A)a lens of fluorite.
B)grazing incidence optics to focus the short wavelengths.
C)a Newtonian reflecting design to avoid chromatic aberration.
D)X-ray photographic plates instead of CCDs for imaging.
E)a Schmidt corrector plate to avoid spherical aberration.

Question

Quizplus · Accepted Answer

The Chandra X-ray Observatory must use grazing incidence optics to focus the short wavelengths of X-ray light. This is because normal reflection would cause the X-rays to be absorbed or scattered, whereas grazing incidence allows them to be reflected without being absorbed. X-rays have very short wavelengths and cannot be focused effectively with traditional lenses. Instead, Chandra uses grazing incidence optics, where the X-rays graze off the surface of the mirrors and are reflected onto the detector. This design allows for high-quality X-ray imaging.

The Chandra X-Ray Observatory Must Use