A convex lens produces an image of an object on a screen with a magnification of 
. When the lens is moved 30 cm away from the object, the magnification of the image is 2. The focal length of the lens is
(a)
20 cm
(b)
25 cm
(c)
30 cm
(d)
35 cm
A convex lens produces an image of an object on a screen with a magnification of . When the lens is moved 30 cm away from the object, the magnification of the image is 2. The focal length of the lens is
(a)
20 cm
(b)
25 cm
(c)
30 cm
(d)
35 cm
Question ID - 100047 | SaraNextGen Top Answer
A convex lens produces an image of an object on a screen with a magnification of . When the lens is moved 30 cm away from the object, the magnification of the image is 2. The focal length of the lens is
(a)
20 cm
(b)
25 cm
(c)
30 cm
(d)
35 cm
|
A convex lens produces an image of an object on a screen with a magnification of |
|||||||
|
(a) |
20 cm |
(b) |
25 cm |
(c) |
30 cm |
(d) |
35 cm |
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