Question

Q27. The refractive Index of a
medium 'X with respect to'y is 2/3
and the refractive index of medium
'y with respect to‘z is 413. The
refractive index of medium X with
respect toʻZ' is
O 2/9
O 9/8
O 8/9
O 5/6​

Answer 1

Answer:

धबक्षफ़खक्षखझफक्षषैयऐखक्षफदठयझठक्षठ I don't know

Answer 2

Answer:

I think 9/8 is the answer once ask your friends