In a Young's double-slit experiment, the angle that locates the second-order bright fringe is 3.0°. The slit separation is 4.8 10-5 m. What is the wavelength of the light?
To find the wavelength of the light in Young's double-slit experiment, we can use the formula:
λ = (d * sinθ) / m
Where:
λ is the wavelength of the light,
d is the slit separation,
θ is the angle that locates the bright fringe,
m is the order of the bright fringe.
In this case, we are given:
θ = 3.0° (converted to radians, θ = 0.05236 radians),
d = 4.8 * 10^-5 m,
m = 2 (since it is the second-order bright fringe).
Plugging these values into the formula, we get:
λ = (4.8 * 10^-5 m * sin(0.05236 radians)) / 2
Now, we can calculate the value of λ.