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A convex lens has mean focal length of 20 cm. The dispersive power of the material of the lens is 0.02. The longitudinal chromatic aberration for an object at infinity is
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A convex lens of focal length `20 cm` has a point object placed on its principal axis - YouTube
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An object is kept at a distance of 10 cm from a convex lens whose focal length is 20 cm. What is it's image size? - Quora
The image formed by a convex mirror of focal length 20 cm is a quarter of the object. - YouTube
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A convex lens of focal length 20 cm can produce a magnified virtual as well as real image. Is th... - YouTube
A diverging lens of 20 cm focal length forms on image 15 cm from the lens. What is the distance of the object from the lens?
A concave lens of focal length 20cm and double convex lens of focal length 30cm are placed 15cm apart on their common axis if an object is placed at distance x in
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A convex lens of focal length 20 cm is placed coaxially with a convex mirror of radius of curvature 20 cm. The two are kept at 15 cm apart from each other.
a thin convex lens of focal length 20 cm is kept in contact with a plane mirror.The focal length of this cobination will be
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A concave mirror of focal length 20 cm is to be used as a shaving mirror. Which of the - YouTube
A small object is placed $20 \ \mathrm{cm}$ from the first | Quizlet
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The image distance of an object placed 10 cm in front of a thin lens of focal length + 5 cm is at :
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An object 10 cm high is placed at the distance of 20 cm from a concave lens of focal length, 15 cm. Can anyone calculate the position and size of the image
An object is 20 cm in front of a diverging lens with a focal length of 10 cm. (a) Use ray tracing to determine the location of the image. (b) Is the
a concave mirror of focal length 20cm is placed at a dis†an ce of 50cm from a wall. how far from the wall should an object be placed to form its real
