1.

An object 5cm is placed at a distance of 20cm in front of a convex mirror of radius of curvature 30cm. Find the position, nature and size of the image.

Answer»

Solution :Object DISTANCE,u=-20cm
object height, h=5cm
Radius of CURVATURE, R=30cm
Radius of curvature`=2xx` Focal length
R=2f
f=15cm
ACCORDING to the MIRROR formula,
The positive value of image height indicates that the image formed is ERECT. Therefore, the image formed is virtual erect,and smaller in size


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