Question

An object 5 cm high is placed at the distance of 10 cm from the convex mirror of radius of curvature 30 cm find the nature , position , size of the

Answer 1

Answer:

Explanation:

Given mirror is convex mirror

Thus

f = R/2 = 30/2 = 15cm

u = -10cm

h = 5cm

Now we have to find the nature, position and size of image

Thus using mirror equation

1/f = 1/u + 1/v

=> 1/v = 1/f -1/u

=>1/v = 1/15+1/10

=> 1/v = 25/150

=> v = 6 cm { hence image will be formed between focus and pole .

Now magnification

m = -(v/u) = (h'/h)

m = -(-6/10)

= 3/5 { it means that the image will be virtual , react and diminished.

Now again

m = h'/h

3/5 = h'/5

=> h' = 3cm hence the size of image will be 3cm