CBSE Class 10 Science 2017 · Paper 31(B)/C · Question 4
An object is placed at a distance of 8 cm in front of a concave mirror of focal length 10 cm. Write any four characteristics of the image formed.
Answer
The image is virtual, erect, enlarged five times and formed 40 cm behind the mirror.
With cm and cm, the mirror formula gives cm, and . Four characteristics of the image:
(1) It is virtual: it cannot be obtained on a screen.
(2) It is erect.
(3) It is enlarged, five times the size of the object.
(4) It is formed behind the mirror, 40 cm from the pole.
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