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What is the energy of photon whose wavelength is 6840 Å?
Options
(a) (1.81 eV)
(b) (3.6 eV)
(c) (-13.6 eV)
(d) (12.1 eV)
Correct Answer:
(1.81 eV)
Explanation:
λ = 6840 Å
.·. ʋ = c / λ ⇒ hʋ = hc / λ
If hc = 12400 eV Å
Energy of the photon = 12400eV Å / 6840 Å
= 1.81 Å
Related Questions: - A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radioactive sample S₁ having an activity of 5 μCi has twice the number of nuclei
- In R-L-C series circuit, the potential differences across each element is 20 V.
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- Two liquid drops having diameters of 1 cm and 1.5 cm. The ratio of excess
- A galvanometer is converted into an ammeter by connecting
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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