a convex lens forms a real image of 3/2 times height of the object at 18 cm from the lens. Calculate the focal length of the lens.
Answers
Answered by
0
Answer : 7.2cm
Explanation:
✓ Real Image : v = +18cm
✓ Real Image in Convex Lens : m = -3/2 ( Inverted Image )
=> u = - ( 1.5 ) x ( 18cm ) = -12cm
✓ Further :
=> f = 7.2cm
Similar questions