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Home / Doubts and Solutions/NEET/Physics

The kinetic energy of an electron in H-like atom is 6.04 ev. Area of the 3rd bohr orbit to which the electron belong is

1- 17.8 × 10-¹8

2- 18.7×10^-18

3- 2.8 ×10^-16

4- 17.8×10^-18

All values are in cm²

Asked by ashutosh25807 6th February 2018, 7:01 AM
Answered by Expert
Answer:
begin mathsize 24px style E equals e squared over 2 x fraction numerator 1 over denominator 4 straight pi element of subscript straight o straight r end fraction 6.04 x 1.6 x 10 to the power of negative 19 end exponent space equals fraction numerator 1.6 x 10 to the power of negative 19 end exponent over denominator 2 x straight r end fraction x 9 x space 10 to the power of 9 space r equals 1.1920 x 10 to the power of negative 10 end exponent space m A r e a space equals space straight pi space straight r squared This space will space help space you space finding space the space answer end style
Answered by Expert 6th February 2018, 11:02 AM
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