Q15.If the total energy transferred to a surface in time ๐ก is 6 . 48 ร 105 J, then the magnitude of the total momentum delivered to this surface for complete absorption will be : (1) 2 . 46 ร 10-3 kg m s-1 (2) 2 . 16 ร 10-3 kg m s-1 (3) 1 . 58 ร 10-3 kg m s-1 (4) 4 . 32 ร 10-3 kg m s-1
What This Question Tests
This question tests the relationship between energy and momentum for photons, specifically for complete absorption by a surface.
Concepts Tested
Formulas Used
E = pc
P = E/c (for complete absorption)
๐ NCERT Sections This Tests
11.4 โ Monochromatic Light Of Wavelength 632.8 Nm Is Produced By A
Physics Class 12 ยท Chapter 11
11.4 Monochromatic light of wavelength 632.8 nm is produced by a helium-neon laser. The power emitted is 9.42 mW. (a) Find the energy and momentum of each photon in the light beam, (b) How many photons per second, on the average, arrive at a target irradiated by this beam? (Assume the beam to have uniform cross-section which is less than the target area), and (c) How fast does a hydrogen atom have to travel in order to have the same momentum as that of the photon?
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?
12.5 โ A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 ยท 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.
๐ Question Details
- Chapter
- Dual Nature of Matter
- Topic
- Radiation Pressure & Momentum
- Year
- 2024
- Shift
- 30 Jan Shift 2
- Q Number
- Q15
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 11: Dual Nature of Radiation and Matter
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