subject
Physics, 27.11.2019 20:31 devbar3416

Two sources emit beams of light of wavelength 550 nm. the light from source a has an intensity of 10 µw/m2, and the light from source b has an intensity of 20 µw/m2. this is all we know about the two beams. which of the following statements about these beams are correct? (there could be more than one correct choice.)a) a photon in beam b has twice the energy of a photon in beam a. b) a photon in beam b has the same energy as a photon in beam a. c) beam b carries twice as many photons per second as beam a. d) the frequency of the light in beam b is twice as great as the frequency of the light in beam a. e) none of the above statements are true.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
question
Physics, 22.06.2019 12:30
What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight
Answers: 3
question
Physics, 22.06.2019 19:20
The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?
Answers: 1
question
Physics, 22.06.2019 23:00
In which of these cases are the two wave points considered to be in phase with each other?
Answers: 1
You know the right answer?
Two sources emit beams of light of wavelength 550 nm. the light from source a has an intensity of 10...
Questions
question
Mathematics, 19.09.2021 15:40
question
English, 19.09.2021 15:40
Questions on the website: 13722359