A glass plate 2.50 mm thick, with an index of refraction of 1.40, is placed between a point source of light with wavelength 540 nm (in vacuum) and a screen. The distance from source to screen is 1.80 cm. How many wavelengths are there between the source and the screen?

The total number of wavelength is 35180.

Explanation:

Given that,

Thickness = 2.50 mm

Index of refraction =1.40

Wavelength = 540 nm

Distance = 1.80 cm

We need to calculate the wavelength in the medium

Using formula of wavelength

We need to calculate the number of wavelength

Using formula for number of wavelength

Put the value into the formula

We need to calculate the distance traveled by light in air

Using formula for distance

Put the value into the formula

We need to calculate the number of wavelength

Using formula for number of wavelength

Put the value into the formula

We need to calculate the total number of wavelength

Put the value into the formula

Hence, The total number of wavelength is 35180.

i was thinking more like reflects green light, just not sure

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.