energy of 1 photon
= (Plank constant x speed of light, c) / wavelength
= 6.626 x 10^-34 x 2.998 x 10^8 / 2 x 10^-1
= 9.93 x 10^-25 J
energy of 10^12 photons = 9.93 x 10^-25 x 10^12
= 9.93 x 10^-13 J
GSM networks use microwaves of 20 cm in wavelength.
What is the energy carried by one trillion (10^12) photons of this wavelength is?
I got 10^-13 J, but this is apparently wrong. Please help!
2 answers
This was the answer I got too, but it was wrong. The options are:
a) 10^-16
b) 10^-15
c) 10^-14
d) 10^-13
e) 10^-12
a) 10^-16
b) 10^-15
c) 10^-14
d) 10^-13
e) 10^-12
1 answer