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A student is performing a double-slit experiment to determine the wavelength of a light source. She has measured the distance between dark bands and the distance between the slits and the screen. She still needs to measure:
Question 10 options:

A)

the speed of the light

B)

the width of each slit

C)

the distance between the slits

D)

the angle between the right bisector and the first minima

E)

the distance between the centre of the slits and the first minima

Respuesta :

buffydurant37

Answer:

lights need elewctricity

Explanation:

She still needs to measure the distance between the slits.

To determine the correct option among all the options, we need to know about fringe width in young's double slits experiment.

What is fringe width in young's double slits experiment?

  • In young's double slits experiment, a fringe pattern is found on the screen.
  • The separation between the consecutive bright and dark spot is known as the fringe width.

How can we calculate fringe width?

  • Fringe width can be found from the formula

(Wavelength × separation between screen and slits)/separation between the slits.

  • The above formula also gives a relation between the wavelength and fringe width.
  • I.e. if we know the fringe width, separation between the screen and slits and the separation between the slits, we can determine the wavelength.

Thus, we can conclude that she needs the distance between the slits to determine the wavelength of light.

Learn more about fringe width here:

brainly.com/question/16269360

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