Photon And Matter Waves

The correct answer is Option 2: A, B, C, and D only. Let’s evaluate each statement step by step:

Statement Analysis

• A: The energy of a photon is E = hν.

  This is true. The energy of a photon is given by E = hν, where h is Planck’s constant and ν is the frequency.

• B: The velocity of a photon is c.

  This is true. Photons travel at the speed of light, c ≈ 3 x 10^8 m/s, in free space.

• C: The momentum of a photon, p = hν/c.

  This is true. Momentum is derived as p = hν/c, consistent with E = pc.

• D: In a photon-electron collision, both total energy and total momentum are conserved.

  This is true. Conservation laws hold in processes like Compton scattering.

• E: Photon possesses positive charge.

  This is false. Photons are electrically neutral.

Evaluating Options

• Option 1: A and B only – Incorrect, excludes true statements C and D.
• Option 2: A, B, C, and D only – Correct, includes all true statements and excludes false E.
• Option 3: A, C, and D only – Incorrect, excludes true statement B.
• Option 4: A, B, D, and E only – Incorrect, includes false statement E.

Final Answer

Option 2: A, B, C, and D only