katiems9887 katiems9887

15-02-2024
Physics

contestada

A 633 nm helium-neon laser puts out 4.00 W of power with a beam 6.40 mm in diameter. The beam is pointed directly at a pinhole which has a diameter of 1.60 mm. How many photons of light will travel through the pinhole per second? Assume that the intensity of the light is equally distributed across the whole area of the beam.

Respuesta :

Otras preguntas

I need help please help me if you can!

Suppose you own a small business and have been thinking about expanding production, including hiring more workers. Until recently, interest rates at your bank h

the teacher was like a tree standing tall. her students were her leaves

How many moles of O2 are needed to react completely with 35 moles of FeCl3? 4FeCl3 + 3O2 > 2Fe2O3 + 3Cl2

Which idea originated with Charles Darwin? A. Organisms have undergone changes during Earth’s history. B. Traits acquired during a lifetime are passed to

Which expression represents the intersection of A and B? O(ANB) O(A’UB) O(AUB) O P(ANB)

Should teenagers sit down in a chair more than little kids?

Edith is a member of a magazine subscription program. She pays $11 for five magazines.

A number increased by 11 is equal to twice the number decreased by 12

Please, HELP!!!!!!!!!!!!! 100 pts!!