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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
3393 Views

how do i convert from a sine angle to a cosine angle?

the phase difference between sine and cosine graphs is pi/2. so when the sine function is applied to an angle, to get the corresponding answer but from a cosine function you simply add pi/2 (Radians only, fo...
ET
3732 Views

A force is applied to a box of mass 2kg so that is accelerates at 2ms^-2. Find the force acting on the box and thus calculate the work done in moving the box 10m in the direction of the force.

Force=(mass)x(acceleration) F=2x2=4N Work done=(Force)x(distance) W=4x10=40J
ET
3105 Views

What is the equation of an accelerated body moving in one dimension?

x=x 0 +v 0 t+1/2at 2
PA
Answered by Pablo A. • Physics tutor
2780 Views

How can I draw the light diagram in a convergent lens?

There are three rays whose direction is known: The ray passing through the intersection of the lens and the optical plane does not change its direction. The ray passing through the object focal point go para...
PA
Answered by Pablo A. • Physics tutor
2182 Views