Question

(ii) The focal length of concave mirror is 25 cm and image formed at 35 cm and find the
position of object and write the nature of image formed.​

Answer 1

Answer:

i dont knoweweeeeeeeee

Answer 2

Answer:

Given,

Focal length, f=−30 cm if u=−x

real ⇒ same side ⇒v=−ve

Magnification, m= uv ⇒v=m×u=3×(−x)=−3x

From mirror formula, f1 = v1 + u1

We get −301 = −3x1 + −x1

⇒ 301 = 3x 1+3

⇒ 43x =3⇒x=40 cm