Question

The wavelength of red light on air is 7890Å What is the wavelength in glass(n=1.5)

Answer 1

Answer:

v = F X W

7890 = 1.5 X W

THEN DIVIDE THE WAVELENGTH WILL COMR

Answer 2

Answer:

Explanation:

$\frac{refractive index of glass}{refractive index of air\\}$=$\frac{wavelength of light in air}{wavelength of light in glass\\}$

$\frac{1.5}{1}$=$\frac{7890}{wavelength of light in glass}$

wavelength of light in glass=$\frac{7890}{1.5}$

                                             = 5260 A