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Question
According to Bohr's theory, the expression for the kinetic and potential energy of an electron revolving in an orbit is given respectively by ______.
Options
`+ "e"^2/(8pi epsilon_0"r")` and `- "e"^2/(4pi epsilon_0"r")`
`+ (8pi epsilon_0"e"^2) /"r"` and `- (4pi epsilon_0"e"^2)/"r"`
`- "e"^2/(8pi epsilon_0"r")` and `- "e"^2/(4pi epsilon_0"r")`
`+ "e"^2/(8pi epsilon_0"r")` and `+ "e"^2/(4pi epsilon_0"r")`
MCQ
Fill in the Blanks
Solution
According to Bohr's theory, the expression for the kinetic and potential energy of an electron revolving in an orbit is given respectively by `+"e"^2/(8pi epsilon_0"r")` and `- "e"^2/(4pi epsilon_0"r")`.
Explanation:
P.E. = `- "ke"^2/r = - "e"^2/(4pi epsilon_0"r")`;
K.E. = `-1/2 ("P.E.") = - "e"^2/(8pi epsilon_0"r")`
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Bohr’s Atomic Model
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