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(a) In double slit experiments, the equation to find the wavelength of monochromatic light used is given by, wavelength, A= ws D Add labels showing the distances D, w and s. (b) Explain how the pattern on the screen is formed with light and dark bands. (c) For one experiment the distance between the double slit and the screen was 0.80 m and the distance between the double slits was 1.3 mm. i. Calculate the wavelength of the light used if the distance across 20 bright bands is

(a) In double slit experiments, the equation to find the wavelength of monochromatic light used is given by, wavelength, A= ws D Add labels showing the distances D, w and s. (b) Explain how the pattern on the screen is formed with light and dark bands. (c) For one experiment the distance between the double slit and the screen was 0.80 m and the distance between the double slits was 1.3 mm. i. Calculate the wavelength of the light used if the distance across 20 bright bands is

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7. In 1801 Thomas Young demonstrated his double slit experiment using monochromatic light from a single slit which then passed through a double slit. A pattern of dark and light bands was seen on the screen as shown in the diagram. not to scale light source narrow single slit double slit screen wavelength, A= dark band (a) In double slit experiments, the equation to find the wavelength of monochromatic light used is given by, ws D light band Add labels showing the distances D, w and s. (b) Explain how the pattern on the screen is formed with light and dark bands. (c) For one experiment the distance between the double slit and the screen was 0.80 m and the distance between the double slits was 1.3 mm. i. Calculate the wavelength of the light used if the distance across 20 bright bands is 8.8 mm. ii. Calculate the new fringe width if the monochromatic light is changed to one of wavelength 480 nm but nothing else is changed about the arrangement.
Transcribed Image Text:7. In 1801 Thomas Young demonstrated his double slit experiment using monochromatic light from a single slit which then passed through a double slit. A pattern of dark and light bands was seen on the screen as shown in the diagram. not to scale light source narrow single slit double slit screen wavelength, A= dark band (a) In double slit experiments, the equation to find the wavelength of monochromatic light used is given by, ws D light band Add labels showing the distances D, w and s. (b) Explain how the pattern on the screen is formed with light and dark bands. (c) For one experiment the distance between the double slit and the screen was 0.80 m and the distance between the double slits was 1.3 mm. i. Calculate the wavelength of the light used if the distance across 20 bright bands is 8.8 mm. ii. Calculate the new fringe width if the monochromatic light is changed to one of wavelength 480 nm but nothing else is changed about the arrangement.
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