Question

For a concave mirror F=5cm, 4=10cm, as per sing convention rules, which is correct?( )
A)F=5cm, u=10cm, v=10cm
B)F=-5cm, u=-10cm, v=-10cm
C)F=5cm, u=10cm, v=+10cm
D)F=5cm,u=10cm,v=+10cm​

Answer 1

Answer:

B option is correct , f is -ve for concave lens

object distance is taken -ve and image is formed at centre of curvature bcoz object is placed at centre of curvature