(I) What do you understand by the term 'virtual image?(ii) Name two ty

1.	(I) What do you understand by the term 'virtual image?(ii) Name two types of mirrors which always form a virtual image.(iii) Is the virtual image always erect?
Answer» i) Virtual Image. Avirtual imageis a reproduction of an object via light that is formed where the light rays cross when projected back from their path beyond a lens or mirror. Avirtual imageonly exists within the brain of the observer, but is said to exist at the perceived point of intersection. ii) The name of mirror is convex mirror. iii) However, onlyvirtualimage formed by a spherical concave mirror is erect, and only if the object is placed closer to the mirror than its focal point.Basically, this is the same case as with convex lens, except the object must be placed in front of the mirror.

(I) What do you understand by the term 'virtual image?(ii) Name two types of mirrors which always form a virtual image.(iii) Is the virtual image always erect?

Answer»

i) Virtual Image. Avirtual imageis a reproduction of an object via light that is formed where the light rays cross when projected back from their path beyond a lens or mirror. Avirtual imageonly exists within the brain of the observer, but is said to exist at the perceived point of intersection.

ii) The name of mirror is convex mirror.

iii) However, onlyvirtualimage formed by a spherical concave mirror is erect, and only if the object is placed closer to the mirror than its focal point.Basically, this is the same case as with convex lens, except the object must be placed in front of the mirror.

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