| ⇦ | 
| ⇨ |
Photoelectric emision occurs only when the incident light has more than a certain minimum
Options
(a) power
(b) wavelength
(c) intensity
(d) frequency
Correct Answer:
frequency
Explanation:
For occurence of photoelectric effect, the incident light should have frequency more than a certain minimum which is called the threshold frequency (v₀).
We have, 1/2 mv² = hv – hv₀
for photoelecric effect emission v > v₀ where v is the frequency of the incident light.
Related Questions: - If in a L-R series circuit the power factor is 1/2 and R=100Ω, then the value of L is,
- A ballon rises from rest with a constant acceleration g/8. A stone is released
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- Wavefront is the locus of all points, where the particles of the medium
- Which of the following is a vector quantity?
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If in a L-R series circuit the power factor is 1/2 and R=100Ω, then the value of L is,
- A ballon rises from rest with a constant acceleration g/8. A stone is released
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- Wavefront is the locus of all points, where the particles of the medium
- Which of the following is a vector quantity?
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply