Question

an object of height 3 centimetre kept in front of concave mirror of focal length 15 cm It forms three times magnified real image find the position and size of image

Answer 1

h= 3cm
h'=?
m= 3
m= h'/h
3= h'/3
h'=9 cm (size of image)
Nature- highly enlarged,virtual,erect
h'/h =v/u
3=v/15
v= 45cm