Question

What was the error in the size of the perimeter of the primary mirror on the Hubble Space Telescope after launch in 1990?

A. 2.2 nanometres
B. 2.2 microns
C. 2.2 millimetres
D. 2.2 centimetres
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Answer 1

Answer:

Shortly after the Hubble Space Telescope's launch in 1990, operators discovered that the observatory's primary mirror had an aberration that affected the clarity of the telescope's early images. Hubble's primary mirror was built by what was then called Perkin-Elmer Corporation, in Danbury, Connecticut

Explanation:

Answer 2

it's answer is A

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