Particles pass through a single slit of width 1.5 mm. The de Broglie wavelength of each particle is 652 nm. After the particles pass through the slit, they spread out over a range of angles. Assume that the uncertainty in the position of the particles is one-half the width of the slit, and use the Heisenberg uncertainty principle to determine the minimum range of angles.

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Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?