Question

Two photons of same frequencies moving in same medium have:
a) same linear momenta and wavelengths
b) same linear momenta and same speeds
c) same energies and same linear momenta

• A. a only correct
• B. a and b only are correct
• C. b and c only are correct
• D. a, b,and c are correct

Answer 1

Answer: (D)

a, b,and c are correct

$V_1=V_2$

$\frac{C}{{\lambda }_1}=\frac{C}{{\lambda }_2}$

So ${\lambda }_1={\lambda }_2$

& linear momentum

$P=\frac{h}{\lambda }$

$P_1=\frac{h}{{\lambda }_1}$

$P_2=\frac{h}{{\lambda }_2}$

$\therefore P_1=P_2$

And $E_1=P_{1}C$

$E_2=P_{2}C$

So $E_1=E_2$