Question

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a. Power of the sun is about 3.85 x 1026 W. Assume all of the energy is emitted at the average wavelength of about 450 nm, how many photons per second does it produce?

b. Light spectrum of sun emits max power is about 450 nm.   Use this info to determine the approximate temperature of the sun.  

c. Vertically polarized light of intensity 100 W/m2 strikes a polarizing filter with its axis tilted 30° clockwise from vertical.  What is the intensity of the transmitted light?

d. charged particle moving in a magnetic field has a force to the top of the page when it is moving toward the right and the field is into the page. Is this particle positive, negative or neutral?

Thank you!

Answer 1