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Calculate the de-Broglie wavelength of (i) an electron (in the hydrogen atom) moving with a speed of of 1/100 the speed of light in vacuum and (ii) a ball of radius 5mm and mass 3 x 10 -2 kg. moving with a speed of 100ms -1 . Hence show that the wave nature of matter is important at the atomic level but is not really relevant at the macroscopic level.

Calculate the de-Broglie wavelength of (i) an electron (in the hydrogen atom) moving with a speed of of 1/100
the speed of light in vacuum and (ii) a ball of radius 5mm and mass 3 x 10
-2 kg. moving with a speed of 100ms-1.
Hence show that the wave nature of matter is important at the atomic level but is not really relevant at the
macroscopic level.

Grade:upto college level

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