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Photons Questions

Practice 7 Photons questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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7
Total Questions
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1
Easy
๐ŸŸก
5
Medium
๐Ÿ”ด
1
Hard
Practice by Exam:Physics(6)Chemistry(1)

About Photons โ€” practice questions, PYQs & concepts

Photons is a frequently-tested topic on Physics, Chemistry. ExamTest.live currently lists 7 Photons questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

Photons weight in competitive exams

Across our Photons question bank, the largest sources are Physics (6) and Chemistry (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 1 easy Photons questions are available โ€” build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right โ€” the explanation often surfaces a faster approach you can reuse.

All Photons Questions(1โ€“7 of 7)

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Q1mediummcqPhysicsAIEEE 20072026
0% accuracy
A photon of frequency has a momentum associated with it. If is the velocity of light, the momentum is:
Q2mediummcqPhysicsNEET 20212026
The number of photons per second on an average emitted by the source of monochromatic light of wavelength , when it delivers the power of will be ():
Q3easymcqPhysicsNEET (UG) 20242026
If is the velocity of light in free space, the correct statements about photon among the following are:A. The energy of a photon is .B. The velocity of a photon is .C. The momentum of a photon, .D. In a photon-electron collision, both total energy and total momentum are conserved.E. Photon possesses positive charge.Choose the correct answer:
Q4mediummcqChemistryChemistry
0% accuracy
The energies and of two radiations are and respectively. The relation between their wavelengths i.e. and will be:
Q5mediummcqPhysicsPhysics
Monochromatic light of frequency is produced by a laser. The power emitted is . The number of photons emitted, on the average, by the source per second is:
Q6hardmcqPhysicsPhysics
Monochromatic light of wavelength is produced by a helium neon laser. The power emitted is . The number of photons arriving per sec. on the average at a target irradiated by this beam is:
Q7mediummcqPhysicsPhysics
A sodium street lamp emits yellow light of wavelength . Assuming it to be efficient in converting electrical energy to light, the number of photons of yellow light it emits per second is:

Frequently Asked Questions

How many Photons questions are on ExamTest.live?โ–ผ
We have 7 Photons questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Photons MCQs free?โ–ผ
Yes. All Photons questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Photons questions?โ–ผ
Photons questions are commonly asked in Physics, Chemistry. You can filter by exam using the links above.
How do I practice Photons questions effectively?โ–ผ
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.