Question

A concvex mirror used for rear view on an automobile for a radius of curvature 4m. It a bus is located at 6pm .from the mirror . calculate the position and size of image ​

Answer 1

Answer:

R=+3m⇒f= 2+3 m

U=−5m

By Mirror formula:v/1 + u/1 = f/1

⇒ v/1 +(-5)/1

=5/2

⇒

v

1

=

3

2

+

3

1

v

1

=

15

13

⇒v=

13

15

≃1.1538m behind the mirror

m=

h

o

h

I

=−(

u

v

)⇒h

I

=(

u

−v

)h

o

h

I

=(

13

15

×

(1.5)

1

)h

o

h

I

=

13

3h

o

ie. diminished & virtual & erect