Science
Physics
Light- reflection and refraction
Kindly show the diagram on a paper experts not digitally. Please

Solution
FOR LENS L1:
f=+25cm
P=1/f (in metres)
P=100/f ( in cm)
P=100/25
=4 dioptres.
P=+4D.
Here, + sign indicates that given lens L1 is converging or Convex lens.
FOR LENS L2:
f=- 25cm
P=100/f (in cm)
P= 100/-25
=-4 dioptres.
P= -10D
Here, negative sign indicates it is concave or diverging lens.

Lens L1 that is Convex lens will form virtual, magnified image when object is placed at 20 cm ( in between Optic centre and Focus)

When an object is placed in between focus and optical centre, a virtual image is formed. The size of the image is larger than that of the object.
Why is it when the object is placed between focal lenght and 2focal lenght on convex lense the image is - Science - Light - 13334585 | Meritnation.com

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