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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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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
- A concave mirror of focal length f₁ is placed at a distance d from a convex lens
- A black body is heated from 27° C to 127° C. The ratio of their energies of radiations
- The resistance of a carbon resistor of colour code Red-Red Green Silver is(in kΩ)
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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