An image formed on the screen is always a virtual image.
I. An image that can be obtained on a screen is called a virtual image.
II. A convex lens always forms a virtual image.
III. A concave lens always forms a virtual image.
Fill in the blanks:
(a) An image that cannot be obtained on a screen is called ________.
(b) Image formed by a convex ________ is always virtual and smaller in size.
(c) An image formed by a ________ mirror is always of the same size as that of the object.
(d) An image which can be obtained on a screen is called a _______image.
(e) An image formed by a concave ________cannot be obtained on a screen.
Can a virtual image be formed on a screen?
A virtual image formed by a concave mirror is always (a) ____ and a virtual image formed by a convex mirror is always (b) _____ .