The focal length of a concave mirror is f and the distance of the object from the principal focus is a. The magnitude of magnification obtained will be-
(a) (f+a)/f
(b) f/a
(c)root f /root of a
(d)f^2/a^2
Answers
Answer:
The focal length of the concave mirror is given as f.
The focal length of the concave mirror is given as f.As per the sign convention for mirror, the focal length is taken as negative as it is measured opposite to the direction of light.
The focal length of the concave mirror is given as f.As per the sign convention for mirror, the focal length is taken as negative as it is measured opposite to the direction of light.Hence, focal length f = -f.
The focal length of the concave mirror is given as f.As per the sign convention for mirror, the focal length is taken as negative as it is measured opposite to the direction of light.Hence, focal length f = -f.The distance of the object from the principal focus is p.
The focal length of the concave mirror is given as f.As per the sign convention for mirror, the focal length is taken as negative as it is measured opposite to the direction of light.Hence, focal length f = -f.The distance of the object from the principal focus is p.Hence, the distance of object from the mirror [ u ] = p+ f.