Which of the following statement(s) is/are correct?​

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.​

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Mark ‘T’ if the statement is true and ‘F’ if it is false:

(a) We can obtain an enlarged and erect image by a convex mirror. (T/F)

(b) A concave lens always forms a virtual image. (T/F)

(c) We can obtain a real, enlarged and inverted image by a concave mirror. (T/F)

(d) A real image cannot be obtained on a screen. (T/F)

(e) A concave mirror always forms a real image. (T/F)

A concave lens always forms a virtual image.

A convex lens always forms a virtual image.