Recent content by babypudding

Homework Statement Find dc/dp and dc/dq. Homework Equations c= (2p/q)-1/2 The Attempt at a Solution I just want to make if I'm right. I got... dc/dp = (2/q)-1/2 dc/dq = [-2p/(q^2)] -1/2 Thanks.

Ok. Shouldn't it be hf = K + work function ? h= 6.626 x 10-34 K=0 f= 3x108 / 900 x10-9 = 3.33x1014 So hf = 0 + work function work function = 2.21 x 10-19 J Is this right now?

So K=1/2mv2 =1/2 x 9.11x10-31 x 1027.662 =4.81x10-25 J That should be right?

Maximum work function?? Homework Statement What is the maximum work function for a surface to emit electrons when illuminated with 900nm infrared light? Homework Equations K= 1/2mv2 = hf - work function wavelength =h/p = h/mv The Attempt at a Solution p=h/wavelength =...