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The photoelectric threshold wevelength for potassium (work function being 2 eV) is
Options
(a) 620 nm
(b) 310 nm
(c) 1200 nm
(d) 2100 nm
Correct Answer:
620 nm
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
- Two radiations of photons energies 1 eV and 2.5 eV, successively
- A ray of light is incident on a transparent glass slab of refractive index 1.62
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
- An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels
- In a primary coil 5 A current is flowing on 220 V. In the secondary coil 2200 V
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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