6.2.4.3 - Telescope
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Practice Questions
Test your understanding with targeted questions
What is the purpose of a telescope?
💡 Hint: Think about distant stars and planets.
Name the two main components of a telescope.
💡 Hint: One gathers light, and the other helps us see it.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the magnifying power if the objective focal length is 100 cm and the eyepiece focal length is 20 cm?
💡 Hint: Use the focal lengths in the formula.
True or False: A longer focal length in a telescope generally means lower magnifying power.
💡 Hint: Think about how focal length affects magnification.
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Challenge Problems
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If a telescope's objective lens has a focal length of 250 cm and the eyepiece has 5 cm, what is its magnifying power? Discuss how this affects observations of faint stars.
💡 Hint: Use M = f_o / f_e to find magnifying power.
Imagine an astronomer has a telescope with a focal length of 180 cm for the objective and is using a 15 cm eyepiece. If they change to an eyepiece of 30 cm, how will the magnifying power change?
💡 Hint: Remember the formula for magnifying power.
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