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Chapter 35: Q. 6 (page 1017)
A tall man is in front of a camera with a focal length lens. How tall is his image on the detector?
The height of the image will be
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A reflecting telescope is built with a -diameter mirror having anm focal length. It is used with aneyepiece.
What are:
(a) the magnification?
(b) the of the telescope?
The Hubble Space Telescope has a mirror diameter of 2.4 m. Suppose the telescope is used to photograph stars near the center of our galaxy, 30,000 light years away, using red light with a wavelength of 650 nm.
a. What鈥檚 the distance (in km) between two stars that are marginally resolved? The resolution of a reflecting telescope is calculated exactly the same as for a refracting telescope.
b. For comparison, what is this distance as a multiple of the distance of Jupiter from the sun?
A -tall object is to the left of a lens with a focal length of. A second lens with a focal length ofis to the right of the first lens.
a. Use ray tracing to find the position and height of the image. Do this accurately using a ruler or paper with a grid, then make measurements on your diagram.
b. Calculate the image position and height. Compare with your ray-tracing answers in part a.
White light is incident onto a prism at the angle shown in . violet light emerges perpendicular to the rear face of the prism. The index of refraction of violet light in this glass is larger than the index of refraction of red light. At what angle does red light emerges from the rear face?
A camera takes a properly exposed photo at and . What shutter speed should be used if the lens is changed to ?
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