| ⇦ | 
| ⇨ |
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
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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
- Magnetic induction produced at the centre of a circular loop carrying current is B.
- When an object is placed 40cm from a diverging lens, its virtual image is formed 20 cm
- The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- A force of 5 N is acting on an object. Displacement of object is 10 m and the work done
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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