Question

A concave mirror cannot form
A. Virtual image of virtual object
B. virtual image of a real object
C. real image of real object
D. real image of virtual object

Answer 1

Hint: A concave mirror also known as a converging mirror is having a reflecting surface that is curved inward which is away from the incident light. Concave mirrors will reflect light inwardly to one focal point. They are helpful to focus the light.

Complete step by step answer:
Concave mirrors can create both real and virtual images. They will be upright if it is a virtual image or inverted if it is a real image. They can be behind the mirror if it is a virtual image or in front of the mirror if it is a real image. They can also be magnified, reduced, or the same size as objects. Virtual image is an image created when the outgoing rays from an object always diverge or move apart. A virtual object cannot make up a virtual image. When an object is placed between pole and focus, the image created by the concave mirror is magnified, virtual and erect. When an object is placed beyond the centre of curvature, an image of it happens between centre of curvature and focus which is a real image of real object. When an object is virtual, the image produced is real for concave surface as shown in figure. 

So, the correct answer is “Option A”.

Note: A plane mirror will form a virtual image which is positioned behind the mirror. Real images can be projected onto a reflecting screen, but a screen is not mandatory for the image to form. A real image and a virtual image are different types of image. The major difference between the real and virtual images lies in the way in which they are being created. A real image is produced when rays converge, whereas a virtual image happens where rays only appear to diverge. A plane mirror will form a virtual image which is positioned behind the mirror. Real images can be projected onto a reflecting screen, but a screen is not mandatory for the image to form. A real image and a virtual image are different types of image. The major difference between the real and virtual images lies in the way in which they are being created. A real image is produced when rays converge, whereas a virtual image happens where rays only appear to diverge.