state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Physics Dual Nature: Photon and Matter Waves Einstein’s Photoelectric Equation
An atom bomb released energy equivalent to 4 × 1015 J. What amount of mass was converted to energy?
1
440 g
2
0.44 g
3
4.4 g
4
44 g
5
Question Not Attempted