Draw a labelled plot of the spectral characteristics of blackbody radiation for three different blackbody temperatures (three plots). comment on three key features of these plots. explain why the spectrum of sunlight shows some differences with a corresponding blackbody spectrum. b) (8 marks) describe the construction, principle of operation and applications of a light emitting diode (led). c) (6 marks) draw the i-v characteristics of a light emitting diode. mark on your graph the region where light emission is strongest. discuss the similarities and differences between light emitting diodes and laser diodes.

d is the correct answer

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach