A Telescope with a Cassegrain Focus Reflects Light Through an Opening

question 3

Essay

A telescope with a Cassegrain focus reflects light through an opening in the primary mirror for measurement at a camera.The telescope's mirror therefore has a small hole in it where light cannot be collected.How much smaller is the light-collecting power of a telescope with a primary mirror of diameter 10 m and a circular hole with a diameter of 1 m than an identical telescope without such a hole?

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Definitions:

Classical Conditioning

Classical conditioning is a learning process in which an innate response to a potent stimulus becomes triggered by a previously neutral stimulus.

Negative Reinforcement

A process in behavioral psychology where the removal of an undesirable stimulus strengthens a behavior.

Partial Reinforcement

A conditioning schedule in which a reward is not given every time the desired response is made, enhancing resistance to extinction of the behavior.

Successive Approximations

A process in behaviorism where behaviors are broken down into small, achievable steps towards a final goal, often used in learning and conditioning.