| ⇦ | 
| ⇨ |
Monochromatic light of frequency 6.0 x 10¹⁴ Hz is produced by a laser. The power emitted is 2 x 10⁻³ ?. The number of photons emitted, on the average, by the sources per second is
Options
(a) 5 x 10¹⁶
(b) 5 x 10¹⁷
(c) 5 x 10¹⁴
(d) 5 x 10¹⁵
Correct Answer:
5 x 10¹⁵
Explanation:
Since P = nhv
n = p/hv = 2 x 10⁻³ / 6.6 x 10⁻³⁴ x 6.0 x 10¹⁴
= 5 x 10¹⁵
Related Questions: - The order of the electric field near the earth’s surface is
- The order of radius of the nucleus of an atom is
- Calculate the charge on equivalent capacitance of the conbination shown in figure
- Astigmatism is corrected by using
- In a franhofer diffraction experiment at a single slit using a light of wavelength
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The order of the electric field near the earth’s surface is
- The order of radius of the nucleus of an atom is
- Calculate the charge on equivalent capacitance of the conbination shown in figure
- Astigmatism is corrected by using
- In a franhofer diffraction experiment at a single slit using a light of wavelength
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply