GK Question

science hard mcq

Photoelectric effect demonstrates the ________ nature of light.

  1. Wave
  2. Particle
  3. Dual
  4. Electromagnetic

Answer: Particle

Einstein explained photoelectric effect using photons (light quanta), showing particle behavior. This contributed to quantum theory. Wave nature is shown by interference/diffraction. [[NCERT Physics Class 12]]

Topic Physics - Modern Physics
Exam Relevance UPSC CSE, SSC Scientific Assistant, CSIR NET