What does cardiorespiratory fitness measure?
1 answer:
You might be interested in
Answer:
Angle of diffraction for second order maxima is θ = 18.941°
Explanation:
From the question it is given that
wavelength of incident light = λ = 541 nm = 541 x
order of maxima = n =2
diffraction grating has 600 lines per mm
⇒ distance between two slit is = 1.66 x
m
using the relation of Braggs diffraction formula i.e.,
2dsinθ = nλ ..................................(1)
where, d = distance between two lines of grating
θ is the angle of diffraction
n= order of maxima
λ is the intensity of incident photon
on substituting the respected values in relation (1) we get,
2 x 1.66 x m sinθ = 2 x 541 x
⇒ sinθ = 0.3246
⇒ θ = = 18.941 °
Frequency:
Explanation:
The force experienced by an electron in a magnetic field is
where
is the electron charge
v is the speed of the electron
B is the strength of the magnetic field
Since the force is perpendicular to the direction of motion of the electron, the force acts as centripetal force, so we can write:
where
r is the radius of the orbit
is the mass of the electron
Re-arranging the equation,
(1)
We also know that in a circular motion, the speed is equal to the ratio between circumference of the orbit and orbital period (T):
Substituting into (1),
We also know that 1/T is equal to the frequency f, so
In this problem,
Therefore, the frequency of the electrons is