How many photons are in the pulse

Assignment Help Physics
Reference no: EM13556661

A laser emits a single, 2.0-ms pulse of light that has a frequency of 2.83 ´ 1011 Hz and a total power of 75 000 W. How many photons are in the pulse?

Reference no: EM13556661

Questions Cloud

Calculate what is his apparent weight : the elevator begins to accelerate at 1.5m/s^2. What is his apparent weight
What is surface charge density on thedrum if it is conductor : The electric field just above the surface of the charged hollow drum of a photocopying machine has a magnitude E of3.0E+5 N/C. What is the surface charge density on thedrum if it is a conductor? ((assume it is the shape of acylinder))
Determine how old is the specimen : An archeological specimen containing 9.2 g of carbon has an activity of 1.6 Bq. How old (in years) is the specimen
What is the mass of helium present : A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 383 K. what is the mass of helium present
How many photons are in the pulse : A laser emits a single, 2.0-ms pulse of light that has a frequency of 2.83 ´ 1011 Hz and a total power of 75 000 W. How many photons are in the pulse
For a charged hollow metal sphere with total charge : For a charged hollow metal sphere with total charge Q and radius R centered on the origin:
What is the pulleys rotational inertia : block 1 has mass m1 = 470 g, block 2 has mass m2 = 510 g, and the pulley is on a frictionless horizontal axle and has radius R = 5.2 cm. What is the pulley's rotational inertia
Determine what is its radius at liftoff : A weather balloon is designed to expand to a maximum radius of 24 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. what is its radius at liftoff
Determine what is the period of the object : A centripetal force of 235 N is experienced by a mass of 12.3 g as it is spun in a circular path with a radius of 2.50 meters. What is the period of the object

Reviews

Write a Review

Physics Questions & Answers

  Q1 a rifle with a barrel length of 60 cm fires a 12 g

q1. a rifle with a barrel length of 60 cm fires a 12 g bullet with a horizontal speed of 360 ms. the bullet strikes a

  How far will observer be from the speaker

A pair of speakers separated by 0.900 m is driven by the same oscillator at a frequency of 672 Hz. An observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers. (Assume the spe..

  Calculate how far will the less massive astronaut move

Two space walkers, one with a mass of 77 kg and the other with a mass of 78 kg, hold on to the ends of a lightweight cable 14.5 m long. how far will the less massive astronaut move

  Find the orbital period of the satellite

An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 4.50 m/s2

  What is the minimum possible thickness of the bubble

A very thin bubble is floating in air. If the bubble strongly reflects green light (? = 520 nm), what is the minimum possible thickness of the bubble

  Calculate the speed of the bottle

A woman on a bridge 86.8 m above a stream sees a bottle floating along at a constant speed. Calculate the speed of the bottle

  Find the amount of work that is obtained from this process

A Carnot engine takes an amount of heat QH = 111 J from a high-temperature reservoir at temperature TH = 1030 °C, Find the amount of work that is obtained from this process

  What is the difference between the pressures

Water flows out of a shower in a typical house at a rate of 20 liters/min. what is the difference between the pressure in the tank and atmospheric pressure

  Determine the wavelength of the electromagnetic wave

A truck driver is broadcasting at a frequency of 33.103 MHz with a CB (citizen's band) radio. Determine the wavelength of the electromagnetic wave

  Illustrate what is the magnitude of the horizontal force hx

The bar is held by a cord that makes a 90? angle with respect to bar and 50 ? with respect to wall. Illustrate what is the magnitude of the horizontal force Hx on the pivot? The acceleration of gravity is 9.8 m/s2.

  Evaluate the emf of the battery

When a 21 ohm resistor is connected to a battery that has a 7 ohm internal resistance the terminal voltage of the battery is 9 V. Determine the emf of the battery

  How high above his initial location in gun does mickey soar

An obnoxious brat assigns his 18.7-gram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. How high above his initial location in the gun does Mickey soar

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd