Q23.Photons of an electromagnetic radiation has an energy 11keV each. To which region of electromagnetic spectrum does it belong ? (1) X-ray region (2) Ultra violet region (3) Infrared region (4) Visible region
What This Question Tests
This question tests the recall of the electromagnetic spectrum and the energy ranges associated with its different regions, specifically identifying X-rays by their photon energy.
Concepts Tested
Formulas Used
E = hf = hc/λ
📚 NCERT Sections This Tests
12.3 — A Difference Of 2.3 Ev Separates Two Energy Levels In An Atom. What
Physics Class 12 · Chapter 12
12.3 A difference of 2.3 eV separates two energy levels in an atom. What is the frequency of radiation emitted when the atom make a transition from the upper level to the lower level?
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
11.7 — The Work Function For A Certain Metal Is 4.2 Ev. Will This Metal Give
Physics Class 12 · Chapter 11
11.7 The work function for a certain metal is 4.2 eV. Will this metal give hotoelectric emission for incident radiation of wavelength 330 nm?
📋 Question Details
- Chapter
- EM Waves
- Topic
- Electromagnetic spectrum
- Year
- 2013
- Shift
- 09 Apr Online
- Q Number
- Q23
- Type
- Conceptual
- NCERT Ref
- Class 12 Physics Ch 8: Electromagnetic Waves
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