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A photoelectric surface is illuminated successively by monochromatic light of wavelength λ and λ/2. If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the surface of the material is (h=Planck’s constant, c=speed of light)
Options
(a) 2hc/λ
(b) hc/3λ
(c) hc/2λ
(d) hc/λ
Correct Answer:
hc/2λ
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
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- Monochromatic light of wavelength 667 nm is produced by a helium neon laser
- In a discharge tube ionization of enclosed gas is produced due to collisions between
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
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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