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CBSE Class 11-science Answered

1 ) AN ELECTRON JUMPS FROM 4th ENERGY LEVEL TO 1st ENERGY LEVEL IN AN HYDROGEN ATOM. HOW MANY PHOTONS OF ENERGY ARE EMITTED ? PL. SHOW THE STEPS OF CALCULATION AND ANSWER.
 
2 )  WHAT WOULD BE THE UNCERTAINTY IN MOMENTUM OF AN ELECTRON WHOSE POSITION IS KNOWN WITH ABSOLUTE CERTAINTY?
Asked by DEBODYUTI SENGUPTA | 23 Jun, 2014, 11:35: AM
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1 ) AN ELECTRON JUMPS FROM 4th ENERGY LEVEL TO 1st ENERGY LEVEL IN AN HYDROGEN ATOM. HOW MANY PHOTONS OF ENERGY ARE EMITTED ? PL. SHOW THE STEPS OF CALCULATION AND ANSWER.
Answer : Since only one electron is jumping from fourth energy level to the first energy level hence only one photon will be emitted.
Answered by Vaibhav Chavan | 23 Jun, 2014, 01:29: PM
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