What is the rms value of electric field in the laser beam

Reference no: EM13539228

A laser emits a cylindrical beam of light 2.8mm in diameter.If the average power of the laser is 2.6mW , what is the rms value of the electric field in the laser beam?
E-rms=________kv/m

Reference no: EM13539228

Questions Cloud

What is the pressure of the heated gas : A gas at a temperature of 382 K, a pressure of 197 kPa and occupying a fixed volume of 0.38 m3, is heated so that the temperature of the gas rises by 34 K. What is the pressure of the heated gas? Give your answer in pascals.

A prime minister of an emerging country once bragged : A prime minister of an emerging country once bragged that he was going to make his country self-sufficient and independent of foreigners. Do the principles of economics suggest anything about how you as a native of that country might have been affect..

Find the current necessary to float the wire : A straight, stiff, horizontal wire of length 30 cm and mass 60 g is connected to a source of emf by light, flexible leads. A magnetic field of 1.5 T is horizontal and perpendicular to the wire. Find the current necessary to float the wire; that is, f..

Find the magnetic moment of the magnet : A small magnet of length 7.1 cm is placed at an angle of 80 degree to the direction of uniform magnetic field of magnitude 0.01 T. The observed torque has a magnitude of 0.07 N m. Find the magnetic moment of the magnet.

What is the rms value of electric field in the laser beam : A laser emits a cylindrical beam of light 2.8mm in diameter.If the average power of the laser is 2.6mW , what is the rms value of the electric field in the laser beam?

Radio station broadcasts its signal uniformly : A 73kW radio station broadcasts its signal uniformly in all directions. What is the average intensity of its signal at a distance of 300m from the antenna? I_avg=_______mW/m^2

What is the maximum value of the electric field : What is the maximum value of the electric field in an electromagnetic wave whose average intensity is 3.75W/m^2 ?

Television is tuned to a station broadcasting at a frequency : A television is tuned to a station broadcasting at a frequency of 7.00×10^7Hz . For best reception, the rabbit-ear antenna used by the TV should be adjusted to have a tip-to-tip length equal to half a wavelength of the broadcast signal.Find the op..

In radiofrequency ablation : In radiofrequency (RF) ablation, a small needle is inserted into a cancerous tumor. When radiofrequency oscillating currents are sent into the needle, ions in the neighboring tissue respond by vibrating rapidly, causing local heating to temperatur..

User Account

All Pages