Q.

Statement I  : Bohr's theory is also called as quantum theory.

Statement  II : The angular momentum of orbiting electron changes by only a definite amount 

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a

Both statements are correct 

b

Statement I is incorrect and statement II is correct 

c

Both statements are incorrect

d

Statement I is correct and statement II is incorrect

answer is A.

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Detailed Solution

The angular momentum of orbiting electron is integral multiple of h2π and angular momentum can change by only quantum.

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Statement I  : Bohr's theory is also called as quantum theory.Statement  II : The angular momentum of orbiting electron changes by only a definite amount