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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.
Related Questions: - A radiation of energy ‘E’ falls normally on a perfectly reflecting surface
- A conducting sphere of radius R is given a charge Q. The electric potential
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
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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 radiation of energy ‘E’ falls normally on a perfectly reflecting surface
- A conducting sphere of radius R is given a charge Q. The electric potential
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- A metal bar of length L and area of cross-section A is clamped between two rigid
- A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
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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