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If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is
Options
(a) 10⁻² h
(b) h
(c) 10² h
(d) 10¹² h
Correct Answer:
10¹² h
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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- A particle under the action of a constant force moves from rest upto 20 seconds
- A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
- The equation of state for 5 g of oxygen at a pressure P and temperature T,
- The drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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momentum is given by p=h/lambda
As h is constant so p is inversely proportional to lambda. The value of lambda is 0.01 angstrom I.e, 1×102 Angstrom. and angstrom is equals to 10 raised to the power 10. so the equation becomes p=1/1×102×1010. p=1/1×1012
p=10 raised to the power -12. So the answer is ×10-12.