Can you explain the answer of this question below:When a beam of light moves from a rarer medium to a denser medium:A:It goes undeviatedB:It bends towards the normalC:It bends away from the normalD:It bends at 90ºThe answer is b.

Question

Can you explain the answer of this question below:When a beam of light moves from a rarer medium to a denser medium:A:It goes undeviatedB:It bends towards the normalC:It bends away from the normalD:It bends at 90&#186;The answer is b.

Answer

It is bcoz of Refraction
refraction is due to change in the speed of light as it enters from one transparent medium to another. So when light travels from rarer medium to a denser medium it bends towards normal because of refraction.
HOPE IT'LL HELP

Answer

When a ray of light goes from a rarer medium to a denser medium, its speed decreases or it slows down.

So, we can say that a ray of light travelling from a rarer medium to a denser medium slows down and bends towards the normal

option B

That's all🙂

Answer

Yeah, well shreyansh is good at his point but if u want my view , then, to follow the principle of least time so for which light is known to exist, then it bends towards normal to complete it's path in least time.....
Hope it helps!!!

Answer

Due to change in speed of light.

when light travels from rarer medium to denser medium, its speed slows down. As a result, it bends towards the normal.

Answer

The question is highly dubious!

You all have attempted to answer it. Good.

I know, the speed of the light beam decreases as it moves from an optically rarer medium to an optically denser medium.

But, here's the deal—you don't know at what angle the rays touch the surface of the denser medium while moving. So, how can you say the rays will bend?

When the rays come perpendicularly, i.e., making an angle of incidence of 90°, light rays do not bend.

The light rays will only bend if they enter the denser medium OBLIQUELY. That is, making an angle of incidence that is less than 90°.

Unless the beam of light moves OBLIQUELY from a rarer to a denser medium, it does NOT bend.

So both options A and B are correct.

It depends on the angle of incidence whether the beam of light will bend or not.

If the beam falls perpendicular on the denser medium, it will not bend. It will go straight.

If and only if the beam does NOT fall perpendicular on the denser medium, there is a possibility of refraction.

__

Answer

Introduction:
When a beam of light moves from a rarer medium to a denser medium, it undergoes a change in direction. This phenomenon is known as refraction. The change in direction occurs due to the change in the speed of light as it passes from one medium to another. The answer to the question is option B, which states that the light beam bends towards the normal.

Explanation:
To understand why the light beam bends towards the normal when moving from a rarer medium to a denser medium, let's consider the following points:

1. Refractive Index:
Every medium has a property called the refractive index, which is a measure of how much the medium can bend light. The refractive index is the ratio of the speed of light in a vacuum to the speed of light in the medium. A denser medium has a higher refractive index compared to a rarer medium.

2. Speed of Light:
The speed of light is different in different media due to the interaction of light with the atoms and molecules of the medium. In general, light travels slower in denser media compared to rarer media.

3. Change in Speed:
When a light beam passes from a rarer medium (lower refractive index) to a denser medium (higher refractive index), its speed decreases. This change in speed causes the light beam to change its direction.

4. Bending towards the Normal:
According to Snell's Law, the angle of incidence and the angle of refraction are related by the equation: n1 * sin(i) = n2 * sin(r). Here, n1 and n2 are the refractive indices of the initial and final mediums, i is the angle of incidence, and r is the angle of refraction.

When the light beam enters a denser medium, the refractive index increases. As a result, the angle of refraction becomes smaller than the angle of incidence. To satisfy Snell's Law, the light beam bends towards the normal, which is an imaginary line perpendicular to the interface between the two media.

Conclusion:
In summary, when a beam of light moves from a rarer medium to a denser medium, it bends towards the normal due to the change in speed of light. This phenomenon is known as refraction. Understanding the principles of refraction is essential in various fields, such as optics and telecommunications.

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