User Account

All Pages

What is the wavelength of light emitted by this laser

Assignment Help Physics
Reference no: EM132583551

1.White light (ranging in wavelengths from 380 to 750 nm) is incident on a metal with work function Wo = 2.6 eV.

(a) What is the maximum kinetic energy of the electrons emitted from the surface?

(b) For what range of wavelengths (from lmin to lmax) will NO electrons be emitted?

2.

(a) In the stimulated emission for a certain helium/neon laser, the energy difference is 1.96 eV. What is the wavelength of light emitted by this laser?

Answer = 634 nm

(b) Lasers are now used in eye surgery. Given the wavelength of a certain laser is 514 nm and the power of the laser is 1.7 W, how many photons are released if the laser is used for 0.058 s during the surgery?

Reference no: EM132583551

Questions Cloud

Find the peaks in the central diffraction envelope : By increasing the slit separation, why do you have more peaks in the central diffraction envelope?
What is the force of gravity on ancilla : Ancilla (mass 57 kg) goes skydiving. At one point in her descent, the force of air resistance on Ancilla and her parachute is 670 N [up].
How much work have brad pitt and leonardo dicaprio done : Brad Pitt and Leonardo DiCaprio are cleaning up a movie set. Brad Pitt wants to move a 138.9-kg box onto a moving truck 1.9 m off the ground. (PQYHZFXRKQ).
What portion of the contract price is recognized as income : What portion of the contract price is recognized as income in 2016? What is the cost incurred to date in 2016? What is the total collection in 2016?
What is the wavelength of light emitted by this laser : 1.White light (ranging in wavelengths from 380 to 750 nm) is incident on a metal with work function Wo = 2.6 eV.
Determine what a standard cost is : Determine What A standard cost is?the historical cost of producing a product last year. a cost which is paid for a group of similar products.
Buoyant force exerted by the water on the sphere : A light string is attached to the sphere and a scale. The sphere has a volume of .785 m^3 and the scale reads 83 kg.
What was the original speed of the clay : The clay sticks to the wood on impact, and their joint velocity afterward is 1.3 m/s. What was the original speed of the clay (in m/s)?
How to calculate the total due : Calculate the total due, assuming payment is made on August 29, 2007. Calculate the total due, assuming payment is made on August 10, 2007.

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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