In my opinion,colour,weight,surface texture,would be some seeming properties different or similar to the actual ones.
Answer:
0.66 degrees
Explanation:
The computation of the angle of the third dark interference is shown below:
The condition of the minima is
Path difference = (2n +1) ×
÷ 2
For third minima, n = 2
Now
xd ÷ D = (2 × 2 + 1) ×
÷ 2
d tan Q_3 = 5
÷ 2
tan Q_3 = 5
÷ 2d
Q_3 = tan^-1 × (5
÷2d)
= tan^-1 × (5 × 580 × 10^-9) ÷ (2 × 0.000125)
= 0.66 degrees
Answer:
The magnitude of the induced e.m.f is 571 mV
Explanation:
Given;
magnetic field strength, B = 0.4T
area of the loop, A = 1m²
time = 0.7s
Since the angle of inclination of the magnetic field, then the direction of the induced e.m.f, θ = 0
According to faraday's law; the induced emf is directly proportional to the rate of change of flux.
Thus, magnitude of the induced e.m.f is given as

Formula: Ca=Vt^2/r
centripetal acceleration(Ca)= ?
tangential speed(Vt)= 2.8m/s
Radius(r)=2m
Substitute: Ca=2.8^2/2
Ca=3.92m/s^2
It would depend on how deep the water or pressure is but I persanlly be higher