Chapter 25 – Electromagnetic Waves
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 25 - Electromagnetic Waves
The shorted wavelength of X- rays emitted from an X- rays tube depends upon
04
Jun
The shorted wavelength of X- rays emitted from an X- rays tube depends upon The shorted wavelength of X- rays emitted from an X- rays tube depends upon June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 25 - Electromagnetic Waves ,
The percentage power of X-ray increases with the increases in its:
04
Jun
The percentage power of X-ray increases with the increases in its: The percentage power of X- ray increases with the increases in its June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 25 - Electromagnetic Waves ,
The area of television telecast is made twice, the height of antenna will be changed as:
04
Jun
The area of television telecast is made twice, the height of antenna will be changed as: The area of television telecast is made twice the height of antenna will be changed as June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 25 - Electromagnetic Waves ,
If e0 and u0 represent the permittivity and permeability of vacuum and e and u represent the permittivity and permeability of medium , the refractive index of the medium is given by
04
Jun
If e0 and u0 represent the permittivity and permeability of vacuum and e and u represent the permittivity and permeability of medium , the refractive index of the medium is given by If e0 and u0 represent the permittivity and permeability of vacuum and e and u represent the permittivity and permeability of medium the [...]
If μ0 be the permeability and k0 , the dielectric constant of a medium, its refractive index is given by
04
Jun
If μ0 be the permeability and k0 , the dielectric constant of a medium, its refractive index is given by If μ0 be the permeability and k0 its refractive index is given by the dielectric constant of a medium June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 25 - Electromagnetic [...]
In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of 2.5×10^10Hz and amplitude 480V/m. The amplitude of oscillating magnetic field will be
04
Jun
In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of 2.5×10^10Hz and amplitude 480V/m. The amplitude of oscillating magnetic field will be In a plane electromagnetic wave the electric field oscillates sinusoidally at a frequency of 2.5×10^10Hz and amplitude 480V/m. The amplitude of oscillating magnetic field will be June 4, 2021 [...]
In X-ray tube the accelerating potential applied at anode is V volt. The minimum wavelength of the emitted X-ray will be
04
Jun
In X-ray tube the accelerating potential applied at anode is V volt. The minimum wavelength of the emitted X-ray will be In X-ray tube the accelerating potential applied at anode is V volt. The minimum wavelength of the emitted X-ray will be June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]