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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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Subject: Physics
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- The capacitance of two concentric spherical shells of radii R₁ and R₂ (R₂>R₁) is
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
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Topics: Dual Nature of Matter and Radiation (150)
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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.