If a source of electromagnetic radiation havi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The power $P$ of the source is $15 	ext{ kW} = 15 	imes 10^3 	ext{ W}$.The number of photons produced per second $n = 10^{16} 	ext{ s}^{-1}$.T

Vedclass · Accepted Answer

Gamma rays

Vedclass · Answer

(C) The power $P$ of the source is $15 	ext{ kW} = 15 	imes 10^3 	ext{ W}$.The number of photons produced per second $n = 10^{16} 	ext{ s}^{-1}$.The energy of one photon $E$ is given by $E = \frac{P}{n} = \frac{15 	imes 10^3}{10^{16}} = 15 	imes 10^{-13} 	ext{ J}$.Using the relation $E = h
u$,we find the frequency $
u$:$
u = \frac{E}{h} = \frac{15 	imes 10^{-13}}{6 	imes 10^{-34}} = 2.5 	imes 10^{21} 	ext{ Hz}$.Electromagnetic radiation with a frequency of $2.5 	imes 10^{21} 	ext{ Hz}$ falls in the range of Gamma rays (which typically have frequencies greater than $10^{19} 	ext{ Hz}$).

If a source of electromagnetic radiation having power $15 \text{ kW}$ produces $10^{16}$ photons per second,the radiation belongs to which part of the spectrum? (Take Planck constant $h = 6 \times 10^{-34} \text{ Js}$)

Similar Questions

If the frequencies of $X$-rays,$\gamma$-rays,and ultraviolet rays are $a, b$,and $c$ respectively,then which of the following is correct?

In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?

If $\lambda = 10 \mathring A$,then it corresponds to

Infrared radiation can be detected by $......$.

If ${\lambda _v}$,${\lambda _x}$,and ${\lambda _m}$ represent the wavelengths of visible light,$X$-rays,and microwaves respectively,then:

Vedclass Test Series

Exam Paper Generator

Online Exam Module