I want to make an electromagnet but it should
Produce magnetic flux which changes with time.
What material wire would be the best to make make windings?
If i am given the de broglie wavelength
Of any particle then its sure that i can find the velocity of tat particle if its mass is given.
λ= h/mv
But the velocity which i found is the group velocity or phase velocity?If it's not the group velocity
How can i find it?
Homework Statement
how to visualize group velocity and phase velocity?
I tried to to visualize it
The velocity of up and down vibration
Of the wave as phase velocity.
And
The velocity of the whole wave in propagating direction as group velocity.
AM I CORRECT OR WRONG?
Homework EquationsThe...
I was working on derivation to find the witdh of principle maxima in n slit diffraction
Angular width=2Δθm=2λ/(Ndcosθm)
Where d:distance between slits
θm:angle at which mth order principle maxima is present.
N:no. Of slits
#in the diagram given below why the minima just adjacent to mth...
here is one more similar question..please clear these doubts.
How many orders will be visible if the wavelength of the incident light is 5000 Å and the number of lines on the grating is 2620 per inch?
Ans: First of all I will find distance between each slit
d=1/2620 inch=2.54/2620 cm=9.69 x...
to find observable orders,
In the websites it said use the formula dsinθ=mλ
then keep θ=90 and find m.
but why θ is put 90 degrees I'm not able understand?
if I'm given grating width=5cm ,slits of width=0.0001cm separated by a distance of 0.0002cm
how many order would be observable at λ=5.5 x 10-5cm?
calculate the width of principle maximum?
please tell me the approach to do this problem