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The Moon has an angular size of 0.50° when viewed with
Chapter 27, Problem 76P(choose chapter or problem)
Problem 76P
The Moon has an angular size of 0.50° when viewed with unaided vision from Earth. Suppose the Moon is viewed through a telescope with an objective whose focal length is 53 cm and an eyepiece whose focal length is 25 mm. What is the angular size of the Moon as seen through this telescope?
Questions & Answers
QUESTION:
Problem 76P
The Moon has an angular size of 0.50° when viewed with unaided vision from Earth. Suppose the Moon is viewed through a telescope with an objective whose focal length is 53 cm and an eyepiece whose focal length is 25 mm. What is the angular size of the Moon as seen through this telescope?
ANSWER:
Step 1 of 3
Here we need to determine the angular size of the Moon when seen through the telescope. The telescope has the focal lengths of the eyepiece and objective lens are and respectively. The angular size of Moon is given to be .
Let the magnification of the telescope be and the angular size of Moon when seen through telescope is .