defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Dual Nature: Photon and Matter Waves The Photon, the Quantum of Light
What will be the photon energy in Joule if it has wavelength 2000 Å?
1
4.97 × 10-19 J
2
2.48 × 10-19 J
3
5.28 × 10-19 J
4
9.94 × 10-19 J