Chapter 35: Q. 20 (page 1017)
A sheet of glass has and . A narrow beam of white light is incident on the glass at . What is the angular spread of the light inside the glass?
Short Answer
The angular spread of the light inside the glass is.
Chapter 35: Q. 20 (page 1017)
A sheet of glass has and . A narrow beam of white light is incident on the glass at . What is the angular spread of the light inside the glass?
The angular spread of the light inside the glass is.
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Get started for freeThe 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’s 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 beam of white light enters a transparent material. Wavelengths for which the index of refraction is n are refracted at angle .
Wavelengths for which the index of refraction is n + , where , are refracted at angle .
a). Show that the angular separation of the two wavelengths, in radians, is .
b). A beam of white light is incident on a piece of glass at 30.0°. Deep violet light is refracted 0.28° more than deep red light. The index of refraction for deep red light is known to be 1.552. What is the index of refraction for deep violet light?
The center of the galaxy is filled with low-density hydrogen gas that scatters light rays. An astronomer wants to take a picture of the center of the galaxy. Will the view be better using ultraviolet light, visible light, or infrared light? Explain.
The objective lens of a telescope is a symmetric glass lens with radii of curvature. The eyepiece lens is also a symmetric glass lens. What are the radii of curvature of the eyepiece lens if the telescope’s magnification is ?
A -tall object is from a screen. A diverging lens with focal lengthis in front of the object. What are the focal length and distance from the screen of a second lens that will produce a well-focused, -tall image on the screen?
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