Question

The radius of curvature of the concave mirror is 24cm. Object is placed at twice of
focal length before the mirror then find magnification
2 Why do we need to balance a chemical equation?
3. Draw the ray diagram for the concave lens when the object is placed before it
mont rytornism​

Answer 1

Answer:

We need to balance a chemical equation so that it remains in accordance with the law of conservation of mass.

Answer 2

Explanation:

radius of curvature = 24cm

focal length = 24/2 = 12 cm

object distance = 24 cm

1/f=1/u+1/v

1/u=1/12 - 1/24

1/u = 1/24

u= 24 cm