A magnifying glass forms a circular dot where it focuses rays of light from the sun. The focus of a magnifying glass is at a distance from the surface of the glass itself. So a magnifying glass must be held [approximately] perpendicular to the line joining the sun and the target, and at a distance from the target which equals the focal length of the lens.
Those speeds are equal, even though the speed of the light was temporarily less while it was inside the glass.
field of view
It will depend on the type of glass, and something called its refractive index. All materials have a refractive index which will effect the speed of the light through it. The speed of light through a vacuum is 3.0x10^8 m/s, and a material such as glass will be lower than this.
bro, just do your physics homework
There are several different types of glass, and light has a somewhat different speed in each of them. On the average, the speed of light across all typical types of glass is in the neighborhood of 2/3 its speed in vacuum, or around 200,000 km/sec .
A magnifying glass has one lenses and a compound light microscope has 2 lenses
A magnifying glass reflecting light.
the magnifying glass has a convex lens and it curves to magnify objects.
Take a magnifying glass and put in under the sun so that there is a small light that forms. lay the marshmellow under that light and wait.
Sure. But the magnifying glass can't squeeze any more heat out of your light sourcethan what the source has without the magnifying glass.The only thing the magnifying glass does is take all of the light ... and maybe heat ? ...that hits the magnifying glass and focus it down to a very small area. It has no moreheat or light to work with than what enters the glass.The most efficient way to heat water with a light bulb is to shine the bulb straight upand hang the pot over it.
It's quite easy- take a magnifying glass and a dry piece of a paper ( preferably newspaper ) and go to a place where appropriate sunlight is available. Let the light of sun fall on to the magnifying glass. Bring the piece of paper beneath the magnifying glass. Now your objective is to move the magnifying glass up and down in such a way that the light emerging from the magnifying glass concentrates to a point. Hold the both things in the same position for a while, and soon you will be able to see the miracle, fire without a matchstick ! Enjoy!
Because a magnifying glass is made of of convex lens. It converses light rays and magnifies the objects seen through it.
try it and then email me with the results
The lens of the magnifying glass concentrates the sun's light to a point. At that point the paper is heated to its ignition temperature and it can catch fire
It bends in water or a magnifying glass.
Idont know the answer