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A photosensitive metallic surface has work function, hν₀. If photons of energy 2hν₀ fall on this surface, the electrons come out with a maximum velocity of 4×10⁶m/s. When the photon energy is increased to 5hν₀, then maximum velocity of photoelectrons will be
Options
(a) 2×10⁷ m/s
(b) 2×10⁶m/s
(c) 8×10⁶m/s
(d) 8×10⁵m/s
Correct Answer:
8×10⁶m/s
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
- A 36 Ω galvanometer is shunted by resistance of 4 Ω. The percentage of the total current
- A bullet of mass m moving with velocity v strikes a block of mass M at rests
- An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor
- A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens
- A thin equiconvex lens of refractive index 3/2 and radius of curvature 30 cm
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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