Monochromatic light with a wavelength of 6.4 e -7 meter passes through two narrow slits, producing an interference pattern on a screen 4.0 meters away. the first order bright band lines are 2.0 e -2 meters away from the central bright maxima.
what is the distance between the slits?

The distance between the slits is .

Explanation:

Given that,

The wavelength of the monochromatic light

Distance = 4.0 m

Width

Using formula of the distance between the slits

Where, x = distance from central fringe

D = Distance between the slit and screen

d = distance between the slits

n = number of order

=wavelength

Put the value into the formula

Hence, The distance between the slits is .

what question you dont ask a question

explanation:

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27