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Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself?
Wiki User
∙ 11y ago
The glass slab is rectangular and both sides of the glass slab have the same medium. The light refracts in such a way that incident and emergent rays are parallel.
Wiki User
∙ 11y ago
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How does incident light emerge from a prism?
Incident light hits a prism, refracted or reflected light emerges from it. In what manner it is different from the incident light depends on the angle of incidence and the angles of the prism. Commonly it may be refracted, dispersed or reflected back.
Why concave lens form diverging rays?
If a ray of light enters a transparent object like water or glass at an angle the path of the ray is deflected. When it emerges, it's deflected again, but in the opposite direction if the ingoing plane and the outgoing plane are parallel to one another. This effect is known as refraction. When a parallel ray hits a convex lens this refraction causes it to emerge as a non-parallel ray and there will be a point at which the ray becomes very narrow - maybe showing as a spot of light. This is the point of focus. If the lens is concave, the effect is reversed and the ray emerges as a steadily expanding ray.
A bullet of mass 0.012 kg and initial speed 400 ms penetrates an initially stationary pop can of mass 0.047 kg and emerges with a speed 290 ms how fast is the can moving after the bullet emerges?
This is a momentum problem.Pbullet inital + Pcan initial = Pbullet final + Pcan final(Mbullet)(Vbullet initial) + (Mcan)(Vcan initial) = (Mbullet)(Vbullet final) + (Mcan)(Vcan final)Then we solve for Velocity can final by inserting known values(0.012kg)(400m/s) + (0.047kg)(0m/s) = (0.012kg)(290m/s) + (0.047kg)(velocity)V= 28.1m/s
Why does a ray of light passing through the glass slab not show dispersion?
White light is actually a combination of all of the colors of all of the rainbow. It splits in a prism because the prism can pick up the differences. However, it will not in a glass slab because the slab is smooth and will not reflect all of the different colors of light.
What happens when light strikes translucent material?
-- A portion of the light energy reflects back from the surface of the material. -- A portion of thelight energy is absorbed into the material and never seen again. -- The remainder of the light energy proceeds on through the material and emerges unbowed and undeterred from the other side.
Why emergent parallel incident ray in a glass slab?
This is because the amount of refraction taking place at the parallel faces of a glass slab is equal but opposite and since the faces are parallel the emergent ray emerges parallel to the incident ray with lateral displacement.
How does incident light emerge from a prism?
Incident light hits a prism, refracted or reflected light emerges from it. In what manner it is different from the incident light depends on the angle of incidence and the angles of the prism. Commonly it may be refracted, dispersed or reflected back.
How does the speed of light that emerges from a pane of glass compare with the speed of light incident on the glass?
Those speeds are equal, even though the speed of the light was temporarily less while it was inside the glass.
Self awareness emerges at what age?
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Why concave lens form diverging rays?
If a ray of light enters a transparent object like water or glass at an angle the path of the ray is deflected. When it emerges, it's deflected again, but in the opposite direction if the ingoing plane and the outgoing plane are parallel to one another. This effect is known as refraction. When a parallel ray hits a convex lens this refraction causes it to emerge as a non-parallel ray and there will be a point at which the ray becomes very narrow - maybe showing as a spot of light. This is the point of focus. If the lens is concave, the effect is reversed and the ray emerges as a steadily expanding ray.
What are the first and last colors on the visible spectrum?
violet emerges first and red emerges last...
Why is concave mirror used in street lights?
bcause when light source placed at focus of the mirror, after flashing the light form the source to the mirror after reflection a straight parallel beam of light emerges which makes the street bright
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