Question

an object is placed at a distance of 40cm in front of a convex mirror of radius of curvature 40cm. list four characteristics of the image formed by the mirror.

Answer 1

image is

1) virtual

2)Erect

3) diminished

4)laterally inverted

HOPE U LIKE IT

MARK ME AS BRAINLIST

Answer 2

The image is formed virtual , erect smaller and at the back of the mirror.

Explanation:

Given that,

Object distance = 40 cm

Radius of curvature = 40 cm

We need to calculate the focal length

Using formula of focal length

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

Put the value into the formula

$f=\dfrac{40}{2}$

$f=20\ cm$

We need to calculate four characteristics of the image formed by the mirror

Using formula of mirror

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

Put the value into the formula

$\dfrac{1}{20}=\dfrac{1}{v}-\dfrac{1}{40}$

$\dfrac{1}{v}=\dfrac{1}{20}+\dfrac{1}{40}$

$\dfrac{1}{v}=\dfrac{3}{40}$

$v=13.33\ cm$

Hence, The image is formed virtual , erect smaller and at the back of the mirror.

Learn more :

Topic : radius of curvature

https://brainly.in/question/10174148