What is the speed of all types of electromagnetic radiation in a vacuum? What is it called?
- A$3.0 \times 10^{8} \text{ m s}^{-1}$,Speed of light $(c)$
- B$3.0 \times 10^{10} \text{ m s}^{-1}$,Speed of sound
- C$3.0 \times 10^{6} \text{ m s}^{-1}$,Velocity of particles
- D$3.0 \times 10^{5} \text{ m s}^{-1}$,Wave velocity
Explore More
Similar Questions
$A$ particular radio station broadcasts at a frequency of $1120 \, kHz$. Another radio station broadcasts at a frequency of $98.7 \, MHz$. What will be the wavelength of the radiation for each station?
Medium
View SolutionExplain the production,characteristics,and uses of $X$-rays.
Difficult
View SolutionThe energy of one mole of photons of radiation whose frequency is $5 \times 10^{10} \, s^{-1}$ is .......... $J$.
Medium
View SolutionThe number of the following statements which is/are incorrect is:
$A$. Line emission spectra are used to study the electronic structure.
$B$. The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet.
$C$. An absorption spectrum is like the photographic negative of an emission spectrum.
$D$. The element helium was discovered in the sun by spectroscopic method.
$A$. Line emission spectra are used to study the electronic structure.
$B$. The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet.
$C$. An absorption spectrum is like the photographic negative of an emission spectrum.
$D$. The element helium was discovered in the sun by spectroscopic method.
What is the intensity of radiation?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo