Answer:
Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. The wavelength decreases as the light enters the medium and the light wave changes direction.
Explanation:
Answer:
d sin tea = m λ
Explanation:
When we have a two-slit system, the optical path difference determines whether the intensity reaching an observation screen is maximum or zero.
To find this difference in optical path, we assume that the screen is much farther than the gap is, we draw a perpendicular from ray 1 to the second ray
OP = d sin θ
now to have constructive interference and see a bright line this leg must be an integer number of wavelengths, ose
d sin tea = m λ
where
d is the distance between the two slits
θ complexion the angle sea the point hold it between the two slits
λ the wavelength of the coherent light used
m an integer, which counts the number of lines of interference
Units in the SI system
d, lam in meters
θ degrees
m an integer
Newton's first law states that an object at rest will stay at rest and an object in motion will stay in motion. So when the car is not moving, the dice will hang directly downwards, being pulled by down by gravity and up by the force normal created of the mirror, equally. But if you start to move forward, then the dice must react in some way, because it is being affected by motion. So the dice will now gravitate towards the back of the vehicle.
You don't notice it but your body is also pulled toward the back of the vehicle. The difference is that you can see the dice. In fact, when you first start to accelerate in your car, you can feel the pull into your seat, but soon you get used to it, and that is what's called relativity.
So the you and the dice are being pulled toward the back of the vehicle, and you can calculate how powerful that force is using F=ma
Explanation:
When there is frictional force distance traveled by the arrow is s = (v^2)/(2μ_kg)
v= velocity of the object
μ_k = kinetic friction coefficient
g= acc. due to gravity.
as distance is proportional to square of the speed therefore the faster arrow penetrate a distance 4 times the distance penetrate by slower arrow.