Solution-Find number of laser photons reaching screen per

Find number of laser photons reaching screen per unit time

Assignment Help Physics

Reference no: EM131553483

Question: When a laser pointer is projected on a screen we see a red (λ = 670 nm) spot with an area of ∼1mm2. The intensity of the light reaching the screen is 3mW.

a. Find the number of laser photons reaching the screen per unit time.

b. If you think of these photons as uniformly distributed through the volume of the laser beam, how far apart are they? (Hint: How fast are they going?)

Reference no: EM131553483

Questions Cloud

Calculate the total dollar interest cost : Calculate the total dollar interest cost on the loan. Assume a 365-day year. Calculate the 60-day rate on the loan. Calculate the total dollar interest cost.

Down-under created a wholly-owned subsidiary : Down-Under created a wholly-owned subsidiary, CabbyTaxi, for the sole purpose of holding the US dollar denominated receivable.

Identify a key concept within the field of psychology : Identify a key concept within the field of psychology and describe in detail the types of primary sources

Generate a sense of meaning and purpose for yourself : Identify how your personal model of leadership helps you generate a sense of meaning and purpose for yourself, others, organizations, and society.

Find number of laser photons reaching screen per unit time : When a laser pointer is projected on a screen we see a red (? = 670 nm) spot with an area of ~1mm2. The intensity of the light reaching the screen is 3mW.

Who is the villain and who is ferris ultimate enemy : Who is the villain? Who is Ferris's ultimate enemy? What message about adults and teenagers does the film portray

Discuss the impact of the new world of digital communication : Using real-world examples, please compose a two-page essay discussing the impact of the new world of digital communication on community-building in America.

Risk management compliance plan for healthcare billing : What are the OIG's (Office of Inspector General) Risk Management compliance plan for healthcare billing and coding?

Calculate the average potential energy of the electron : Can an electron be confined to the volume of a nucleus by the Coulomb attraction between the electron and the nuclear charge?

User Account

All Pages

Find number of laser photons reaching screen per unit time

Reference no: EM131553483

Reference no: EM131553483

Questions Cloud

Reviews

Write a Review

Physics Questions & Answers

Find the magnitude of the resulting magnetic field

Find the equivalent resistance

What is the electric field at the location

What is the maximum displacement of the bridge deck

What is the magnitude of the current in the wire

Blackbody

Gravity conveyor

Calculate the dc voltage

Quadrupole moments in the shell model

Determine the tension in each string

Introductory mechanics: dynamics

Evaluate maximum altitude

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT