Electromagnetic Waves

Match List I with List II : List I (Electromagnetic wave)List II (Production)A. MicrowaveI. Electrons in atoms emit light when they move from a higher energy level to a lower energy levelB. Visible lightII. Radioactive…

The following table presents the part of the electromagnetic spectrum and their corresponding major applications. Part of the electromagnetic spectrumApplicationsP. MicrowaveI. For purifying the waterQ. UV raysII. For…

Match List - I with List - II: List - I (Electromagnetic waves) List - II (Wavelength) (a) AM radio waves (i) $10^{-10}m$ (b) Microwaves (ii) $10^{2}m$ (c) Infrared radiations (iii) $10^{-2}m$ (d) X-rays (iv) $10^{-4}m$…

The wavelength of an X-ray beam is $10\AA\,$. The mass of a fictitious particle having the sameenergy as that of the X-ray photons is $\frac{x}{3}h\mathrm{kg}.$ The value of $x$ is ___ .($h=$Planck's constant)

If $\lambda_{cu}$ is the wavelength of $K_{\alpha}$ X-ray line of copper (atomic number 29) and $\lambda_{Mo}$ is the wavelength of the $K_{\alpha}$ X-ray line of molybdenum (atomic number 42), then the ratio…

Light with an average flux of 20 W cm-2 falls on a non-reflecting surface at normal incidence having surface area 20 cm2. The energy received by the surface during time span of 1 min is:

When light propagates through a material medium of relative permittivity \$ϵ_{r}$ and relative permeability \$\mu_{r}$, the velocity of light, \$v$ is given by : (\$c$ - velocity of light in vacuum)

An EM wave is propagating in a medium with a velocity \$V\to=Vi^\$. The instantaneous oscillating electric field of this em wave is along \$+y$ axis. Then the direction of oscillating magnetic field of the EM wave will…

The following table presents the part of the electromagnetic spectrum and their corresponding major applications. Part of the electromagnetic spectrum Applications P. Microwave I. For purifying the water Q. UV rays II.…

Light with an energy flux of 25$\times$104 W m-2 falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm2, the average force exerted on the surface is:

Match List - I with List - II: List - I (Electromagnetic waves) List - II (Wavelength) (a) AM radio waves (i) \$10^{-10}m$ (b) Microwaves (ii) \$10^{2}m$ (c) Infrared radiations (iii) \$10^{-2}m$ (d) X-rays (iv)…

A capacitor of capacitance C, is connected across an ac source of voltage V, given by V=V0sin$\omega$t. The displacement current between the plates of the capacitor would then be given by___