Plz answer ............

1.	Plz answer ............
Answer» C) A is DIMENSIONLESS ; B has dimensions M0L²T0, is the correct option. This can be explained as:- We know, that REFRACTIVE index is a DIMENSION less quantity. Now, According to principal of homogeneity we know, that DIMENSIONS of quantities on the left is equal to dimensions of quantities in the right. So, A is dimensionless as refractive index. Also, we know only like PHYSICAL quantities can be added or subtracted. So, Dimensions of A = Dimensions of B/lamda². Now since A is dimensionless, B/lamda² = M0L0T0 B/L² = M0L0T0 so, B = M0L²T0 Cheers!

Answer»

C) A is DIMENSIONLESS ; B has dimensions M0L²T0, is the correct option.

This can be explained as:-

We know, that REFRACTIVE index is a DIMENSION less quantity.

Now, According to principal of homogeneity we know, that DIMENSIONS of quantities on the left is equal to dimensions of quantities in the right. So, A is dimensionless as refractive index.

Also, we know only like PHYSICAL quantities can be added or subtracted. So, Dimensions of A = Dimensions of B/lamda².

Now since A is dimensionless,

B/lamda² = M0L0T0

B/L² = M0L0T0

so,

B = M0L²T0

Cheers!

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