Question

What are the characteristics of an object placed 30cm in front of a concave mirror of focal length 20cm

Answer 1

Answer:

Refer Attachment!!!!!

Explanation:

Answer 2

Given:

$\sf{f=-20cm}$

$\sf{u=-30cm}$

$\sf{Mirror=Concave \:mirror}$

Solution:

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

$\sf{{\dfrac{1}{v}}=-{\dfrac{1}{20}}+{\dfrac{1}{30}}}$

$\sf{{\dfrac{1}{v}}=-{\dfrac{1}{60}}}$

$\sf{v=-60cm}$

Thus the image formed will be real ,inverted and enlarged.