A green laser pointer shines through a diffraction grating and projects this pattern onto a screen. The angle marked 0 equals 15.4 °. The dots were widely separated, partly because the projection distance was large, and also because the lines or slits of the diffraction grating were so far apart. O the lines or slits of the diffraction grating were so close together. O the wavelength of the green laser light was longer than the usual red laser light.
A green laser pointer shines through a diffraction grating and projects this pattern onto a screen. The angle marked 0 equals 15.4 °. The dots were widely separated, partly because the projection distance was large, and also because the lines or slits of the diffraction grating were so far apart. O the lines or slits of the diffraction grating were so close together. O the wavelength of the green laser light was longer than the usual red laser light.
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Transcribed Image Text:QUESTION 8
L2
DIFFRACTION
GRATING
L1
LASER
Dots on
screen
R1
I R2
ipcel.co.uk
A green laser pointer shines through a diffraction grating and projects this pattern onto a screen. The angle marked 0
equals 15.4 °. The dots were widely separated, partly because the projection distance was large, and also because
the lines or slits of the diffraction grating were so far apart.
the lines or slits of the diffraction grating were so close together.
the wavelength of the green laser light was longer than the usual red laser light.
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