Which type of reflecting telescope loses the most light because of its multiple mirrors design? [Hint: this design is commonly used in huge observatory telescopes]Group of answer choicesPrime focusNewtonian focusCassegrain focusNasmyth focus
Question
Which type of reflecting telescope loses the most light because of its multiple mirrors design? [Hint: this design is commonly used in huge observatory telescopes]Group of answer choicesPrime focusNewtonian focusCassegrain focusNasmyth focus
Solution
The type of reflecting telescope that loses the most light because of its multiple mirrors design is the Cassegrain focus. This design is commonly used in huge observatory telescopes. The reason for this light loss is because the Cassegrain design uses two mirrors - a primary and a secondary mirror. The secondary mirror, which is placed in the path of the light coming from the primary mirror, inevitably blocks some of the light.
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