Question

The refractive index of glass with respect to air is 1.65 and that of water with respect to air is 1.33 .calculate refractive index of water with respect to glass?

Answer 1

Answer:

Refractive index of water with respect to glass is 0.806

Explanation:

Refractive index of i) glass be ng

                                ii) air be na

                                iii) water be nw

$\frac{n_{g} }{n_{a} } = 1.65$   (Given)

$\frac{n_{w} }{n_{a} } = 1.33$    

To find : $\frac{n_{w} }{n_{g} } = ?$  

Dividing the 2nd equation with the 1st

$\frac{n_{w} }{n_{g} } = \frac{1.33}{1.65}$

     =  0.806

Answer 2

Answer:

Explanation:

refractive index of water w.r.t. glass.

= refractive index of water/ refractive index of glass

=1.33/1.65

=0.8