2) Some telescopes are dual-purpose: they detect visible light and infra-red. Were the telescope in the question above capable of this, would it have higher resolution in infra-red or lower (compared to visible light)? 2a) What diameter lens do you need on a telescope that can resolve up to a thousandth of a second? 2b) A magnifying glass is rated at 3.5 magnification for normal eyes that are focused on an image at the near point. What is its focal length? What would the focal length be if the magnification referred to a relaxed eye? 2c) What optical instrument was used recently to detect gravitational radiation?

2) Some telescopes are dual-purpose: they detect visible light and infra-red. Were the telescope in the question above capable of this, would it have higher resolution in infra-red or lower (compared to visible light)? 2a) What diameter lens do you need on a telescope that can resolve up to a thousandth of a second? 2b) A magnifying glass is rated at 3.5 magnification for normal eyes that are focused on an image at the near point. What is its focal length? What would the focal length be if the magnification referred to a relaxed eye? 2c) What optical instrument was used recently to detect gravitational radiation?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter9: Optics

Section: Chapter Questions

Problem 14P: . (a) In a camera equipped with a 50-mm focal-length lens, the maximum distance that the lens can be...

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