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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C
- The magnetic field at the centre of a circular coil carrying current I ampere is B.
- Consider the following two statements about Kirchhoff’s law
- A radioactive substance contains 10000 nuclei and its halflife period is 20 days
- A geostationary satellite is orbiting the earth at a height of 5R above that surface
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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