A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is ……….
A. \(\frac { E }{ c }\)
B. 2\(\frac { E }{ c }\)
C. Ec
D. \(\frac { E }{{ c }^{2}}\)
Answer:B
A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is ……….
A. \(\frac { E }{ c }\) B. 2\(\frac { E }{ c }\) C. Ec D. \(\frac { E }{{ c }^{2}}\)