Why is a convex mirror is used as looking glass in vehicles?
Why is a plane mirror used for looking our face?
What are the rules for drawing a ray diagram in a convex mirror?
What is the process to draw a ray diagram for a concave mirror?
What is the difference between a real image and a virtual image?
Power of given lens is +25 D. Find the distance FO.
A person wears spectacles of power -1D.Find defect of eye and f.
Power of lens is 2.5 dioptre, find focal length,type of lens.
An object is placed at 60cm , concave lens focal length is 20cm. find image and magnification.
An object is kept 45cm away, convex lens of power 10D. locate the image formed by the lens with a ray diagram.