A concave lens of 20 cm focal length has an object kept at a distance of 60 cm in front of the mirror. Compute the image distance.
Focal length, f = -20 cm
Object distance, u = -60cm
Using lens formula,
Image distance = -15 cm
6
A concave lens of 20 cm focal length has an object kept at a distance of 60 cm in front of the mirror. Compute the image distance.
Focal length, f = -20 cm
Object distance, u = -60cm
Using lens formula,
Image distance = -15 cm