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
Related Physics A Level answers
All answers ▸Draw and describe the major points of a typical stress-strain graph for a metal.
A spacecraft called Deep Space 1, mass 486 kg, uses an “ion-drive” engine which expels 0.13 kg of xenon propellant each day at 30kms^-1. What is the initial increase in speed of the spacecraft
Two pellets are fired simultaneously from the horizontal, one is fired vertically at 100m/s and the other is fired at 200m/s at an angle theta from the horizontal. Calculate the angle of the second pellet if they both land at the same time.
Explain why a transformer is used in electrical power lines.