A monochromatic light of unknown wavelength is incident on a slit of width \(20 \mu \mathrm{m}\) diffraction pattern is seen at a screen 2.5 m away where the central maximum is spread over a distance of 10.0 cm. Find the wavelength.
Text Transcription:
20 mu m
Notes 11/14 Earth’s Moon Tidal forces are caused by differences in the force of gravity 2 o Fgravdepends inversely on 1/r Earth Moon Strongest gravity closet to the moon Weaker gravity further away Tidal bulges on Earth “lead” the moon’s orbit o Earth spins faster than the moon moves in orbit o So, tidal bulge is always ahead of the moon’s position Top View Moon’s motion Near side pulls forward Earth’s Weaker pull from far bulge spin drags tidal bulge Near side pulls forward, adds energy to moon’s orbit, moon moves outward. Distance increases 38m