A hydrogen discharge lamp emits light with two prominent wavelengths: (red) and (blue). The light enters
a flint-glass prism perpendicular to one face and then refracts
through the hypotenuse back into the air. The angle between
these two faces is .
a. Use Figure to estimate to the index of refraction
of flint glass at these two wavelengths.
b. What is the angle (in degrees) between the red and blue light
as it leaves the prism?
(a) The index of refraction of flint glass at these two wavelengths are and
(b) The angle between the red and blue light as it leaves the prism .
We need to estimate the index of refraction of flint glass at the two wavelengths.
.Here is the wavelength and is refractive index.
We need to find angle between the red and blue light.
Here is the refractive index and refraction angle.
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 , 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?
Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.0 cm, the other 1.0 cm. You plan to use the more powerful lens as the objective, and you want the eyepiece to be 16 cm from the objective.
a. For viewing with a relaxed eye, how far should the sample be from the objective lens?
b. What is the magnification of your microscope?
A 2.0-cm-tall object is to the left of a lens with a focal length of A second lens with a focal length of is 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.
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