The most commonly used formula in amateur astronomy is used to calculate the magnification of a telescope: magnification = focal length of telescope / focal length of eyepiece. Example: using a 10mm eyepiece in a telescope with a focal length of 1000mm results in a magnification of 100x (1000 / 10 = 100)
40) A telescope has an objective of focal length 100 cm and an eye-piece of focal length 5 cm. What is the magnifying power of the telescope when it is in normal adjustment?
Answer is:
20
Explanation:
Related Optics MCQ with Answers
Answer is:
6 mm
Explanation:
The most commonly used formula in amateur astronomy is used to calculate the magnification of a telescope: magnification = focal length of telescope / focal length of eyepiece. Example: using a 10mm eyepiece in a telescope with a focal length of 1000mm results in a magnification of 100x (1000 / 10 = 100)
Answer is:
17.5 cm
Explanation:
The most commonly used formula in amateur astronomy is used to calculate the magnification of a telescope: magnification = focal length of telescope / focal length of eyepiece. Example: using a 10mm eyepiece in a telescope with a focal length of 1000mm results in a magnification of 100x (1000 / 10 = 100)
Answer is:
both objective and eye-piece have short focal lengths
Explanation:
Magnifying power of a compound microscope is high if both objective and eye-piece have short focal lengths
Answer is:
the objective has a long focal length and the eye-piece has a short focal length
Explanation:
The magnifying power of telescope is high if the objective has a long focal length and the eye-piece has a short focal length