One Advantage of Using a Cassegrain Telescope Is That

question 23

Multiple Choice

One advantage of using a Cassegrain telescope is that

• A) larger mirrors can be used with a Cassegrain telescope than with a Newtonian telescope of similar size.
• B) Cassegrain telescopes use spherical mirrors, which are easier to manufacture than the parabolic mirrors required by other telescopes.
• C) Cassegrain telescopes have holes cut out of their primary mirrors to make them lighter.
• D) observing equipment mounted on a Cassegrain telescope is more balanced and stable than if it were mounted on a Newtonian telescope.

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Definitions:

Frequency

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves) or in an electromagnetic field (as in radio waves and light).

Pitch

The perceived frequency of a sound, determining its musical note or tone.

Pinna

The visible part of the ear that is outside the head, which captures sound waves and directs them into the ear canal.

Middle Ear

The part of the ear that channels and amplifies sound through the eardrum, hammer, anvil, and stirrup to the inner ear.