A source of green laser light has a wavelength of 560nm, what is its frequency? Give your answer to an appropriate number of significant figures and using the correct units.

1.) using the wave speed formula for an electromagnetic wave, c=fλ, (c=3.00x10^8 m/s)

f=c/λ where c=the speed of an electromagnetic wave.

f=(3.00x10^8)/(560x10^-9)= 5.36x10^14 Hz

JE
Answered by Joel E. Physics tutor

3375 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Explain the photo-electric effect and how the particle theory of light explains the phenomena. State the equation used to the determine the kinetic energy of a photo-electron and explain the origin of the terms used in your equation.


A car of mass 1500kg is travelling at 10 ms-1 along a horizontal road. A brake force of 3000N brings it to rest. Calculate the deceleration of the car and the distance travelled by the car whilst decelerating.


Determine an approximate value for the acceleration of free fall using a tennis ball, metre ruler and a stopwatch.


Experimentally, how would you calculate the Young's modulus of a material?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning