Question

A security mirror used in a big showroom has radius of curvature o
m. If a customer is standing at a distance of 20 m from the cash
counter, find the position, nature and size of the image formed in the
security mirror.​

Answer 1

Answer:

y

Explanation:

ans

is

he will be at 50 m

mark brainliest

Answer 2

The image distance is 2.22 m in positive side from the mirror.

The size of image will be smaller then the actual size of customer.

The image is virtual upright and diminished.

Explanation:

Given that,

Radius of curvature = 5 m

Object distance = 20 m

We need to calculate the focal length

Using formula of radius of curvature

$f = \dfrac{R}{2}$

Put the value into the formula

$f=\dfrac{5}{2}$

$f=2.5\ m$

We need to calculate the image distance

Using formula of image distance

$\dfrac{1}{f}=\dfrac{1}{v}+\dfrac{1}{u}$

$\dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}$

Put the value into the formula

$\dfrac{1}{v}=\dfrac{1}{2.5}+\dfrac{1}{20}$

$v=\dfrac{20}{9}\ m$

$v=2.22\ m$

Hence, The image distance is 2.22 m in positive side from the mirror.

The size of image will be smaller then the actual size of customer.

The image is virtual upright and diminished.

Learn more :

Topic : optics

https://brainly.in/question/15760664