Quantitatively describe the difference in the light emitted by two blackbodies, one at 6000K and one at 4000K. Which difference is the most noticeable? Explain why.
As you can see from graph For blackbody radiation that as temprature raises the area enclosed under the curve increase means we get higjher peak of power density for 6000K then 4000K . From the graph we can see that at 6000K power density have peak at 10 but for 4000K it drstically decreases to 1,5 so that's why at 6000K emitted light is most noticable
Quantitatively describe the difference in the light emitted by two blackbodies, one at 6000K and one...
In the photoelectric effect experiment, a beam of light is shining on a metal surface and the electrons are emitted from the metal. One of the three key findings is that a minimum frequency of light is required for emission of electrons. This minimum frequency is found to be 5.5 × 1014 s-1 for an unknown metal. 4 Briefly describe the other two findings and draw a plot fo the KE of emitted electrons against light frequency. (a) (6 marks)...
The orange light emitted from sodium lamp, which are commonly used as street light, contains two distinct frequencies. When the light interferes a beat frequency in observed in the brightness of the light. If the frequencies of the light emitted are 589.0nm and 589.6nm, what is the beat frequency? Select one: a. 0.5 Hz b. 5 x 1014 Hz c. 5 x 1011 Hz d. 5 x 109 Hz
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 540 lines/mm , and the light is observed on a screen 1.7 m behind the grating.
In the spectrum of the atom, two yellow lines are emitted, one at 5890Å and the other at 5896Å A. Which of the two lines has a higher energy for the photon? B. Calculate the energy difference between two photons at the wavelengths mentioned
The two most prominent wavelengths in the light emitted by a helium discharge lamp are 686.7 nm (red) and 587.6 nm (yellow). Light from a helium lamp illuminates a diffraction grating with 750 lines/mm, and the light is observed on a screen 50 cm behind the grating. What is the distance between the first-order red and yellow fringes? Express your answer in cm.
Two like charges are separated by some distance. Describe quantitatively what will happen to the force exerted by one charge on the other if one of the charges is replaced by a charge of the same magnitude but opposite sign. The force will become: the same magnitude but becomes attracting. not enough information to tell what will happen. twice as large. the same - no change at all. the same magnitude but becomes repelling.
A uniform ultraviolet light source shines on two metal plates causing electrons to be emitted from each plate. Plate A emits twice as many electrons as plate B. However, the electrons emitted from plate B have a higher maximum velocity. Which of the following describes a plausible explanation for the differences in electron emission? (Select two answers.) A) Plate A must have a larger work function than plate B. B) The higher velocity electrons in case B would be produced...
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue) Light from a hydrogen lamp illuminates a diffraction grating with 550 lines/mm, and the light is observed on a screen 1.4 m behind the grating Part A You may want to review (Page 940) For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Diffraction grating. What is the...
8. Describe quantitatively the change of the electric field when going from one side to another side of an infinitely large conducting surface with the surface density o. 9. What is the physical meaning of Kirchhoff's rules? 10. Draw a plot of the electric potential of a uniformly charged (non-conducting) solid ball of radius R as a function of distance r from the center of the ball (the plot must include both r<R and r>R regions). Explain how you made...
The wavelength of light emitted by a particular laser is 497nm. This laser light illuminates two slits that are 42 um apart. (a) What is the angular separation between the n = 2 and n = -2 maxima? (b) If a screen is placed 1.10 m from the slits, what is the distance between these two maxima? (c) If you want these two maxima to be 1.00 cm apart, how far from the slits do you need to place the...