Question

an object is place in front of concave mirror of radius of curvature of 20 cm at a distance of 5 cm. find the position, nature and magnification of the image

Answer 1

answer = -1/5

1/F=1/V+1/U

F=R/2=20/2=10CM

THEN ; 1/10-1/5=-1/5

MAGNIF; IS +1/2