One of the smallest macroscopic particles we could imagine using for an experiment would be a very small smoke or soot particle. These are ≈1 μm in diameter, too small to see with the naked eye and just barely at the limits of resolution of a visible-light microscope. A particle this size has mass m ≈ 10-18 kg. Estimate the de Broglie wavelength for a 1-μm-diameter particle moving at the very slow speed of 1 mm/s.
Compton effect
The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.
Recoil Velocity
The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.
One of the smallest macroscopic particles we could imagine using for an experiment would be a very small smoke or soot particle. These are ≈1 μm in diameter, too small to see with the naked eye and just barely at the limits of resolution of a visible-light microscope. A particle this size has mass m ≈ 10-18 kg. Estimate the de Broglie wavelength for a 1-μm-diameter particle moving at the very slow speed of 1 mm/s.
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