Q21.A particle initially at rest starts moving from reference point ๐ฅ= 0 along ๐ฅ-axis, with velocity ๐ฃ that varies as ๐ฃ= 4โ๐ฅ m s-1. The acceleration of the particle is _____ m s-2.
What This Question Tests
This question determines the band gap energy of a photodiode using the maximum wavelength of light that can cause conductivity, converting the energy from joules to electron volts.
Concepts Tested
Formulas Used
E = hc/ฮป
E = eV
๐ NCERT Sections This Tests
11.3 โ The Photoelectric Cut-Off Voltage In A Certain Experiment Is 1.5 V.
Physics Class 12 ยท Chapter 11
11.3 The photoelectric cut-off voltage in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted?
11.6 โ The Threshold Frequency For A Certain Metal Is 3.3 ร 1014 Hz. If Light
Physics Class 12 ยท Chapter 11
11.6 The threshold frequency for a certain metal is 3.3 ร 1014 Hz. If light of frequency 8.2 ร 1014 Hz is incident on the metal, predict the cut- off voltage for the photoelectric emission.
11.8 โ Light Of Frequency 7.21 ร 1014 Hz Is Incident On A Metal Surface.
Physics Class 12 ยท Chapter 11
11.8 Light of frequency 7.21 ร 1014 Hz is incident on a metal surface. Electrons with a maximum speed of 6.0 ร 105 m/s are ejected from the surface. What is the threshold frequency for photoemission of electrons?
๐ Question Details
- Chapter
- Semiconductor
- Topic
- Photodiode and Band Gap
- Year
- 2024
- Shift
- 01 Feb Shift 2
- Q Number
- Q21
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 14: Semiconductor Electronics: Materials, Devices and Simple Circuits
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