XI Chap # 01
Chapter 1 - The Scope of Physics 1. The branch of physical science, which deals with interaction of matter and energy, is called __________. (Physics,…
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XII :Chap # 11
Heat 1. The energy that flows from a high temperature object to a low temperature object is called __________. (Heat, Sound Electricity, Solar…
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Physics CH # 18
Review Questions Q.1 The bohr theory of hydrogen atom is based upon many assumptions. Do any of these assumption contradict classical physics? Ans: …
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Physics CH # 19
Review Questions Q.2 Do α, β and γ rays came from the same element .Why do we find all three in many radioactive elements? Ans: A radioactive elemen…
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Physics CH # 20
Review Questions Q.20.1 Explain how would you test whether the radiation from a radioactive source are γ, β, α Particles? Ans. If the radiations a…
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Physics CH # 9
Definitions: 1. Machine: A machine is a device by means of which useful work can be performed conveniently and it can also transfer one form of energy …
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