The angle of incidence, when there is perfect transmission is the polarization angle. The expression for the polarization is
Where
= Polarization angle
= Angle with the vertical axis
We have that the angle is
The ratio of the intensities depends on the cosine of the polarization angle. The polarization angle found from the wearer’s leaning angle can be used to find the fraction of the reflected ray intensity that will pass through the sunglasses.
Applying the Malus Law we have that
Here,
= Final intensity
= Initial intensity
Replacing we have,
Therefore the fraction of the reflected light intensity which passes through the sunglasses is 0.11
If your body did not digest enough food, you would not have the energy to exercise. Food is like fuel for the body.
Answer:
4.D.all of them are correct
5. B.Making observation
S=(0x4)+(0.5x4.81x4x4)
S=0.78.48
The depth is approximately 78 meters.
(My brain hurts now) :P Good Luck!
Answer:
The average speed is 8.0 km/h
Explanation:
We use the data for the return journey to calculate the distance travelled using the constant velocity equation:
s = v t =6*4=24km
Note I didn't change any units so the answer comes out in kilometres.
Now use the distance and time taken to travel to Guam to find the average speed:
v=st=24/3=8.0km/h