Respuesta :
Answer:
25208.33
Explanation:
Thickness of the glass plate 2.50mm = 2.50 × 10⁻³m
refractive index of the glass = 1.65
wavelength of the light in vaccum = 600nm
distance between source and screen = 1.35cm = 1.35 × 10⁻²m
wavelength of light in the medium
λ = 600 × 10⁻⁹ / 1.65
λ = 3.6364 × 10⁻⁷
number of wavelength in glass
[tex]n_1 = \frac{t}{\lambda} \\\\n_1 = \frac{2.50\times 10^-^3}{3.6364\times 10^-^7}\\ \\n_1 = 6875[/tex]
Distance travel by light in air
D = d - t
D = 1.35 × 10⁻² - 2.50 × 10⁻³
D = 0.011m
Thus, the number of wavelength
[tex]N_2=\frac{D}{\lambda}[/tex]
[tex]N_2 =\frac{0.011}{600\times 10^-^9} \\\\N_2 = 1833.33[/tex]
Total number of wavelength is
[tex]N = N_1+N_2\\\\N = 6875+1833.33\\\\N = 25208.33[/tex]
Answer: 2.5*10^4
Explanation:
The wavelength can be gotten using this formula
no of wavelength = d / λ
Also, the wavelength in a medium having a refraction index, n =
λ = λ(0) / n
so that, wavelength in the glass plate will be
λ = 600 / 1.65
λ = 363.64 nm
The thickness of glass plate is 2.5mm = 2.5*10^-3 m
The distance from source to screen is 1.35 cm = 0.0135 m
The distance between the source and screen, excluding the glass plate = 0.0135 - 0.0025 = 0.011 m
The number of wavelength is
(distance in air / wavelength in air) + (distance in glass / wavelength in glass) =
(0.011 / 600*10^-9) + (0.0025 / 363.63*10^-9) =
18333 + 6875 =
25208 = 2.5*10^4
Therefore, the total number of wavelength will be 2.5*10^4
