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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
- The pressure at the bottom of a tank containing a liquid does not depend on
- If the minimum energy of photons needed to produce photoelectrons is 3 eV,
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- A block of mass m is placed on a smooth wedge of inclination θ
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
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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