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when laser light of wavelength 6334nm passes through a diffraction grating the first bright spots occur at 178 degrees
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a stone is dropped into a well the sound of the splash is heard 180 s later what is the depth of the
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a sinusoidal wave is traveling on a string with speed 50 cms the displacement of the particles of the string at x 30
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light of wavelength 610 nm is incident on a slit of width 015 mm and a interference pattern is produced on a screen
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a mirror creates an image of magnification 13 a is the image upright or inverted b if the object is 775 cm tall what is
as you get ready for your early morning physics class you comb your hair in front of a planar mirror you know that you
a ball fastened to one end of a 28 cm string and the other end is held fixed to a support the ball whirls in a