Questions

Distinguish Between.

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 13 Marks
Real image and Virtual image
Answer

Real image

Virtual image

(i) A real image is formed only when the reflected rays actually meet at a point.

(ii) Real images can be obtained on a screen.

(iii) All real images are inverted.

(i) A virtual image is formed only when the reflected rays appear to meet at a point.

(ii) Virtual images cannot be obtained on a screen.

(iii) All virtual images are erect.

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Question 23 Marks
Convex mirror and Concave mirror
Answer

Convex mirror

Concave mirror

(i) In a convex mirror, the reflecting surface is on the outer side.

(ii) It is called a diverging mirror.

(iii) The focus of a convex mirror is virtual.

(iv) It can form only a virtual image.

(v) It can form only a diminished image.

(i) In a concave mirror, the reflecting surface is on the inner side.

(ii) It is called a converging mirror.

(iii) The focus of a concave mirror is real.

(iv) It can form a real as well as a virtual image.

(v) It can form an enlarged, diminished as well as the same size image.

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Distinguish Between. - Science STD 9 Questions - Vidyadip