Why does light ray not change direction when it pass through the curved part of the semicircular glass block?

Why does light ray not change direction when it pass through the curved part of the semicircular glass block?

Short answer: Because in the left-hand case the incoming ray is perpendicular to the surface so it is not refracted. In other words the angle of incidence is zero in contrast to the right-hand case. Highly active question.

Why does light not refract as it passes through the curved side of the air water boundary?

Once the light ray enters the water, it travels in a straight line until it reaches the second boundary. The ray does not refract upon exiting since the angle of incidence is 0-degrees (recall the If I Were An Archer Fish page).

Why does light ray not bend?

Due to the symmetry of the system, there’s nothing to distinguish between left and right relative to the surface. The reason that the light is not refracting is that it will take the path that will take the shortest time from through the medium. This is essentially what snell’s law gives us.

Why does the light bend when it passes through the edges of the lenses but not when it passes directly through the middle?

They meet at a focal point on the other side of the lens. Rays closest to the edges of the lens are refracted most; rays at the very center of the lens pass straight through without being deflected. Because they are refracted away from each other, parallel light rays passing through a concave lens do not meet.

Why light rays do not bend or refract when they meet the glass slab perpendicularly?

If the incident ray falls on the glass slab perpendicularly or normally, it goes inside the slab un-deviated i.e there is no bending of light because of the following reasons: As the incident rays passes along the normal to the surface, the angle of incidence becomes zero.

When light travels from glass to water which direction does light bend?

Answer: Glass is a denser medium than water. therefore a Ray of light will bend towards the normal when it goes from water to glass.

Why doesn’t light bend when it hits a curved surface?

Answer: For every point in curved surface there. is a normal on it. point it makes some angle with normal and following law of reflection the reflected ray make equal angle with normal as incident ray goes backward . that’s how light refracted at curved surface.

Why do light beams not refract when they hit a curved surface?

Well, your light ray must have hit the curve at an exact point where the angle of incidence was zero, (the light ray was perpendicular to the exact point at which it hit the semi circle), which means there was no refraction.

What happens when light passes through a glass block?

Refraction in a glass block. When light passes from air through a block with parallel sides, it emerges parallel to the path of the light ray that entered it. Refraction explains why an object appears to bend when it goes through water.

Why does light appear to bend when it passes through water?

When light passes from air through a block with parallel sides, it emerges parallel to the path of the light ray that entered it. Refraction explains why an object appears to bend when it goes through water. Refraction at the boundary between air and water 1

Why does a light ray bend towards the normal line?

Since the light ray is passing from a medium in which it travels fast (less optically dense) into a medium in which it travels relatively slow (more optically dense ), it will bend towards the normal line. This is the FST principle of refraction.