How to distinguish between plane concave and convex lens without touching
Answers
Answered by
0
The type of spherical mirror whose reflecting surface is bulged outwards, in the sense that its face is opposite to the centre of the sphere is known as a convex mirror. A curved mirror whose reflecting surface is bent inwards, i.e. it faces towards the centre of the sphere is called a concave mirror.
Answered by
1
We can differentiate between a convex and concave lens by seeing the image.
- On keeping the lens near a printed page, if letters appear magnified, the lens is convex and if the letters appear diminished, the lens is concave.
- On seeing a distant object through the lens, if its inverted image is seen, the lens is convex and if an upright image is seen, the lens is concave.
Similar questions