8. Exercise VIII

An image that cannot be obtained on a mirrorcannot be obtained on a screencan be obtained on a screen is known as a virtual image. The light rays from the object, which does not appear to meetappear to meetmay or may not appear to meet at a point after the reflection from the mirror, forms a virtual image. The image formed on a plane mirror is always virtualalways realsometimes virtual. A virtual image cannot be formed on a screen because it sometimes allowdoes not allowallow the light to pass through them.