Light from a helium-neon laser passes through a narrow slit and is incident on a screen 2.4m distance from the slit. The graph below shows the variation with intensity I of the light on the screen of distance x along the screen.
Light from a helium-neon laser passes through a narrow slit and is incident on a screen 2.4m distance from the slit. The graph below shows the variation with intensity I of the light on the screen of distance x along the screen.
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Transcribed Image Text:Light from a helium-neon laser passes through a narrow slit and is incident on
a screen 2.4m distance from the slit. The graph below shows the variation with
intensity I of the light on the screen of distance x along the screen.
-10
-5
5
x/ mm
10
(i)
The wavelength of the light emitted by the laser is 630 nm. Use data from the graph
above to determine the width of the slit.
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