after the light passes through the prism, the light is technically still the same just separated into different energy levels or colors. if you want to achieve the "white" light that entered the prism again, you can place another prism in front of the colored light and it should combine and create the "white" light again.
The medium through which the emitted light of a torch passes will not affect the battery life of the torch. The battery life of the torch will be the same if you are shining it through air, glass, water, or anything else.
No.
Opaque basically means that something is not transparent; light can not pass through. For an example: the choroid of the eye is opaque, it absorbs excessive light so multiple images do not appear on the retina. Keep in mind that absorbing light is not the same thing as passing through. The choroid basically stops too much light from hitting the retina.
Refractive indexes of both the substances are same
when it is empty nothing it gives the same amount of light back and if full same.
Yes, as long as the light is passing through vacuum.
When white light passes through a prism it spreads to form a rainbow. If that "rainbow" light is then passed through a second prism it cannot recombine to reform white light.NO
They are NOT the same.
About the same
It depends on the medium the light is passing through n sin I=n sin R
The medium through which the emitted light of a torch passes will not affect the battery life of the torch. The battery life of the torch will be the same if you are shining it through air, glass, water, or anything else.
No.
To show that light is made up of colours through diffraction.A prism is a 3d shape that is the same 2d shape all the way along. Many things are shaped as prisms. for example a glass triangular prism can be used to reflect or defract light in telescopes or to produce coloured light.
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
Two different rectangular prisms can both have the same volume of 72 cm3
No.
all of them have rectengles connecting them