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A copper pot with mass 0.500 kg contains 0.170 kg of water ata temperature of 20.0ºC. A 0.250-kg block of iron at85.0ºC is dropped into the pot. Find the final temperature, assumin
Depending upon the penetration power, there are two parts of X-rays Hard X-rays More penetration power More frequency of the order of ≈ 1019 Hz Lesser wavelength range
How are the colloids classified on the basis of the nature of interaction among dispersed phase and dispersion medium? Describe a significant characteristic of each class. Which of
Draw the graph showing the variation of binding energy per nucleon with mass number. Give the reason for the decline of binding energy per nucleon for nuclei with high mass numbers
Illustrate a labelled diagram of Hertz's experimental set-up to produce electromagnetic waves. Describe the generation of- electromagnetic waves using this set-up.
Photon Interactions a. Consider a Si detector of 1 mm thickness. 10 6 photons each with energy of 100 keV are incident on the detector. Find the number of coherent, Compton, an
Consider two identical plastic foam balls each one having a thin sheath of aluminium foil. One of the balls has a few positive charges and the other has the same amount of negative
Pitch: It is the characteristics of a sound by which we can distinguish among a grave and shrill sound is known as pitch. It depends on frequency of the vibrating body and expr
According to Eisenstein's quantum theory light propagates in the bundles of power, every packet being called as photon and possessing energy.
Joule's laws (J.P. Joule) Joule's first law The heat Q generated while a current I pass through a resistance R for a particular time t is given by following Q = I2 R
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