If m1 and m2 are the refractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimised by having [BVP 2003]

If m1 and m2 are the refractive indices of the materials of core and c

1.	If m1 and m2 are the refractive indices of the materials of core and cladding of an optical fibre, then the loss of light due to its leakage can be minimised by having [BVP 2003]
A.	m1 > m2
B.	m1 < m2
C.	2.4 gm
D.	None of these
Answer» B. m1 < m2