Answer:
Phase difference = pi/4 radians
Explanation:
Given:
- The wavelength of incident light λ = 600 nm
- The split separation d = 0.85 mm
- Distance of screen from split plane L = 2.8 m
Find:
What is the phase difference between the two interfering waves on a screen, at a point 2.5 mm from the central bright fringe?
Solution:
- The phase difference can be evaluated by determining the type of interference that occurs at point y = 2.5 mm above central order. We will use the derived results from Young's double slit experiment.
sin ( Q ) = m*λ /d
m = d*sin(Q) / λ
- Where, m is the order number and angle Q is the angle for mth order of fringe from central bright fringe.
r = sqrt ( L^2 + 0.0025^ )
Where, r is the distance from split to the interference bright fringe.
r = sqrt(2.8^ + 0.0025^) = 2.8
sin(Q) = 0.0025 / 2.8
Hence. m = 0.00085*0.0025 / 2.8*(600*10^-9)
m = 1.26
- We know that constructive interference would occurred at m = 1 and destructive interference @ m = 1.5. They have a phase difference of pi/2 radians.
- The order number lies in between constructive and destructive interference i.e m ≈ 1.25 then the corresponding phase difference = 0.5*(pi/2).
Answer: Phase difference = pi/4 radians
Answer:
The resultant velocity is <u>169.71 km/h at angle of 45° measured clockwise with the x-axis</u> or the east-west line.
Explanation:
Considering west direction along negative x-axis and north direction along positive y-axis
Given:
The car travels at a speed of 120 km/h in the west direction.
The car then travels at the same speed in the north direction.
Now, considering the given directions, the velocities are given as:
Velocity in west direction is, 
Velocity in north direction is, 
Now, since 
are perpendicular to each other, their resultant magnitude is given as:
Plug in the given values and solve for the magnitude of the resultant.This gives,
Let the angle made by the resultant be 'x' degree with the east-west line or the x-axis.
So, the direction is given as:
Therefore, the resultant velocity is 169.71 km/h at angle of 45° measured clockwise with the x-axis or the east-west line.
The climate<span> was generally warmer and more humid than today, probably because of very active volcanism associated with unusually high rates of seafloor spreading.
</span><span>The first placental mammals appeared at the beginning of the Cretaceous. The Cretaceous saw the rise and extinction of the toothed birds, Hesperornis and Ichthyornis. The earliest fossils of birds resembling loons, grebes, cormorants, pelicans, flamingos, ibises, rails, and sandpipers were from the Cretaceous.</span>
Answer:
C. amount of charge on the source charge.
Explanation:
Electric field lines can be defined as a graphical representation of the vector field or electric field.
Basically, it was first introduced by Michael Faraday and it is typically a curve drawn to the tangent of a point is in the direction of the net field acting on each point.
The number, or density, of field lines on a source charge indicate the amount of charge on the source charge. Therefore, the density of field lines on a source charge is directly proportional to quantity of charge on the source.
Answer:
E = 58.7 V/m
Explanation:
As we know that flux linked with the coil is given as
here we have
now we have
now the induced EMF is rate of change in magnetic flux
now for induced electric field in the coil is linked with the EMF as
