Head height.
$137,000 to over $200,000 depending on floor to floor height, width and finishes.
A mirror reflects almost all of the light that hits it, depending on the material and surface quality. The smooth surface of a mirror allows light to bounce off at the same angle it hits it, leading to a clear reflection.
The index of refraction affects the reflection properties of a mirror by determining how much light is reflected and how much is transmitted through the mirror. A higher index of refraction results in more light being reflected, while a lower index of refraction allows more light to pass through the mirror.
The answer depends on the mass of the piano and the height of the floor.
There is not much light on the forest floor because of the thick canopy.
the same amount of candle light that of wich the candle is emmiting.
The mirror arm is mounted below the microscope's stage, and can be turned this way and that to reflect light up through the stage and into the microscope barrel, to your eye. Without the mirror, you would see nothing or not much.
It will require a minimum of three square feet of floor space.
The forest floor is dark because the trees are dense and tall above so they can collect as much sun light as possible. This means that only 2% of sun light reaches the forest floor.
It isn't entirely clear to me what the experimental setup would be. If you mean parallel mirrors that reflect light back and forth, giving the impression of a tunnel, it is clear that in every reflection, some light is lost, since no mirror is perfect; so that after a few reflections, not much light is left.
Concave Mirrors, so that the light can be concentrated and so that it points forward. This is how we are able to see using a flashlight beam.:) Catherine
Incandescent floor lamps emit a lower ray of light, therefore you won't get as bright a light shine. A flourescnet light is much brighter. It really depends on where you will put the lamp.