Question

A Convex mirror used for rear-view on an automobile has a radius of
curvature of 2 m. If a bus is located at 4 m from this mirror, 8. Position of
image
O +1.33 m
O -1.33 m
O 1 m
O-1 m​

Answer 1

Answer:

Explanation:

object distance (u)= -5m (always negative) radius of curvature C = 3m focal length = 3/2 = 1.5m. with formula we know that,

1/v +1/u = 1/f

1/v1/1.5 -1/-5

1/v = -5 -1.5 /-7.5

1/v = -6.5/-7.5

v = 1.15m

we must find magnification,

m= -v/u

= -1.15/-5

=0.23

the image is formed on the opposite side of the object.so it will be virtual and erect. and 0.23 is very small where the object is placed beyond C.

so the image is virtual,diminished and

erect.