What will be the mirror image (formed by a plane mirror) of 'WHAT'?

Q.

Image on an object is formed by two plane mirrors one of the plane mirror is double the size of the other in which case will theimage be bigger and why

Please check my answer

Ans. The image of the object in both the Mirrors would be the same as it is one of the characteristics of the image formed by a plane mirror the image formed on the plane mirror would be the exact size of the object

Q. Which of the following images is real?

(a) image formed by a plane mirror
(b) image formed by a convex mirror
(c) image formed by a concave mirror with object between the mirror and focus
(d) image formed by a convace mirror with object behind the focus

Q.

Can the image formed by a plane mirror be projected onto a screen

Can you please check my answer

Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen

Q. When the angle between two plane mirrors is $60°$, how many images will be formed by the mirrors?

Q. (a) What are characteristics of image formed by a plane mirror?
(b) By giving sign conventions made, derive the mirror formula for a concave mirror.