Question
A photon and an electron (mass m ) have the same energy E. The ratio ( _ photon / _ electron ) of their de Broglie wavelengths is: (c is the speed of light)
NEET
Physics
Dual Nature of Matter
2025
NEET 2025
NEET Physics Question (2025) — Solution
Options
- A. E / 2 ~m
- B. c 2 mE
- C. c 2 ~m E
- D. 1 c E / 2 m
Answer
C. c 2 ~m E
Step-by-step solution
Photon & electron have same energy E _ photon _ electron = h c E h 2 mE =c 2 ~m E
Related: Physics — Dual Nature of Matter · All PYQ Banks