Question

Multiple Choice Question
5. Radius of curvature of a spherical mirror is 30 cm. Its focal length is.....cm
A) 30. B) 15.
C) 60. D) 20
6. A line drawn from any point on a concave mirror to its centre of curvature is called....
A) Normal
B) Principal axis
C) Radius of curvature
D) Focal length
7. Identify defect in the given figure
AP
B) C
C) F
D) B and C
P
8. When parallel beam of sun rays fall on a concave mirror and reflect, they meet at...
A) Centre of curvature
B) Focal point
C) Pole of the mirror
D) Any point​

Answer 1

Explanation:

7th me figure kahah h?......

Answer 2

Answer:

5=B). 15cm

6=B). principal axis

7=Where is fig.

8=B).focal point.