| ⇦ | 
| ⇨ |
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 potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
- If radius of the ₁₃Al²⁷ nucleus is taken to be Rᴀı, then the radius of ₅₃Te¹²⁵ nucleus
- If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone
- The wave described by y = 0.25 sin (10 2πx – 2πt), where x and y are in meters
- A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
- If radius of the ₁₃Al²⁷ nucleus is taken to be Rᴀı, then the radius of ₅₃Te¹²⁵ nucleus
- If fundamental frequency of closed pipe is 50 Hz then frequency of 2nd overtone
- The wave described by y = 0.25 sin (10 2πx – 2πt), where x and y are in meters
- A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
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