Question

A student used a lens in an experiment to get always virtual image, What kind of lens be
1.bi-convex 2.bi-concave 3.plano convex 4.concave mirror​

Answer 1

Answer:

A virtual image larger than the object can be produced by a concave mirror.

please make me brainylist please

Answer 2

BI-CONCAVE LENS is being used.

• A BI-CONCAVE LENS is a type of refractive lens in which the light rays after getting refracted deviate away from each other.

• Since the light rays are deviated away, the backwards extrapolation of the rays produce a virtual image.

The image characteristics for this lens irrespective of the position of object is:

1. Image is virtual
2. Image is erect
3. Image is diminished
4. 0 < Magnification < 1

$\star$ Option 2) is correct.