Questions
The slit of a collimator is illuminated by a source as shown in the adjoining figures. The distance between the slit S and the collimating lens L, is equal to the focal length of the lens. The correct direction of the emergent beam will be as shown in figure
detailed solution
Correct option is C
In case of convex lens if rays are coming from the focus, then the emergent rays after refraction are parallel to principal axis.Talk to our academic expert!
Similar Questions
A convex lens is at a distance of 10 cm from a convex mirror of focal length 10 cm as shown in figure. A beam of light parallel to the principal axis is incident on the tens. After refraction through the lens, reflection at the mirror and again refraction through the lens, the final emergent beam refraces the path of the incident beam then focal length of the lens is
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