9 NO 20 View in English A thin equiconvex lons has focal length 10 cm and refractive index 15 One of its faces is now silvered

Question

9 NO 20 View in English A thin equiconvex lons has focal length 10 cm and refractive index 15 One of its faces is now silvered and for an object placed at a distance u in front of it the image coincides with the object The value of u is 1 2 3 4 Correct Answer 2 Status unattempted 10 cm 5 cm 20 cm 15 cm

Kunduz · Accepted Answer

Click to see the answer