the distance between a convex lens and a plane mirror is 10 cm.The parallel rays incidenton the convex lens after reflection from the mirror form an image at the optical centre of the lens.Find the focal length of the lens
Asked by dev.sultanpur123 | 1st Jun, 2015, 12:52: AM
The parallel rays incident on the convex lens converge at the focus,F of the lens. At the mirror, after reflection forms an image at the optical centre of the lens, C.
Thus, the image of the virtual point object Fis formed at C.
f = CF
=CM + MF
= 10 + 10
= 20 cm
Thus, the focal length of the lens is 20 cm.
Answered by Yashvanti Jain | 13th Dec, 2017, 07:16: PM
- A plane mirror produces a ___________ and an _____________ image.
- who to made mirror
- explain the difference between a plane mirror a concave mirror and a convex mirror whith respeact to size of the images produce
- If two mirrors are aligned at an angle *x* do we assume it to be symmetrical or asymmetrical ?
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