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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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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
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- A car moving with a speed of 50 kmh⁻¹ can be stopped by brakes after at least 6 m
- Energy of photon whose frequency is 10¹² MHz will be
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
- Application of a forward bias to a P-N junction
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Subject: Physics (2479)
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.