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For a blackbody, the frequency at which maximum energy is emitted is 3 x 10 13 Hz: A. Give a wavenumber for the wavelength of the infrared emission? B. What is the tempera
A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????
Explain about the crystalline solids in short. Crystalline solids: A solid possesses rigidity with a definite geometric pattern. Illustrations: Iron, silver, copper an
Q. The Rydberg's constant for hydrogen is 1.097 X 10 7 ms -1 . Calculate the shortest wavelength limit of Lyman series. Data : R = 1.097 × 10 7 m -1 For small wavelen
The molar heat capacity of a gas at constant pressure is 18.7 J mol -1 K -1 . What is the heat capacity of 9.4 moles of this gas at constant volume ?
The atmospheric pressure at any position is numerically similar to the weight of a column of air of unit cross-sectional area extending from that position to the top of the atmosph
Their resistivity is very low and temperature coefficient of resistance is not constant. These are materials with unfilled or overlapping energy bands. Current carriers here are fr
Hawking radiation (S.W. Hawking; 1973): Black holes emit radiation such as any other hot body. Virtual particle-antiparticle pairs are being formed in supposedly empty space c
Intensities of an ordinary light and laser light The intensity (I) of a wave is the energy per unit time flowing through a unit normal area. The light from an ordinary light so
Archimedes' principle A body which is submerged into a fluid is buoyed up through a force equal in magnitude to the weight of the fluid which is displaced, and directed upward
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