PLease help me
echo
is reflected from a distant surface reflects
Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer's eye. hope this helped :>
The moon looks bright due to its size because of its closeness to Earth in comparison to very distant stars and planets combined with reflected sunlight.
Far off in the distant came a din, because it was time for church.Din means "repeated noise".
Comets are seen by reflected sunlight. They may be too small, too distant or a combination of both
Because the sound wave energy from the distant cause has reached your ears.
In the old days they did believe that they were distant suns because of the fact of how big it was.
a lens is curved piece of glass, plastic, or other clear material that refracts light that pass through it. Because lenses for different uses must bend light in different ways, not all lens are alike.
because of diffusion
because the universe is expanding.
sound is reflected when it strikes at any medium. a distant sound becomes clear if echo or reverbation takes place. an echo happens when one hears the reflection of the original sound 0.1 seconds later. and reverbation is multiple echo, which one can hear in sikandra at agra in india