how to teach lens easily to the govt students in tamil - Physics - Magnetic Effect of Electric Current and Light

Question

how to teach lens easily to the govt students in tamil?

Pradeep Krishna · Answer

ETTA KUZHI NONDI KITTA KUVI
ETTA PARVAI(MYOPIA)-KUZHI LENS(CONCAVE)
KITTA PARVAI(HYPERMETROPIA)-KUVI LENS(CONVEX)