What we kind of associate as a mirrored surface. And in diffuse reflection,īecause the surface isn't smooth, it's not Is specular reflection, but the other type of reflectionĮverywhere you look. Interesting thing to do if you're looking for That the light from the object must be hitting the mirrorįor it to get to your eye, and where it's actually Look at objects in the mirror, and think about the angle Go to your bathroom and look in the mirror, and Perspective, but hopefully that starts to make sense. Ray and that perpendicular, is going to be the sameĪs the reflected angle. Surface of the water, and say that the incidentĪngle, the angle of incidence right there between the Perpendicular right over here- I'm not doing that too well- weĬan draw a perpendicular right over here to the The surface of the water, or we could draw a Water is equal to the angle of the reflected ray and Say that this angle is equal to this angle, so theĪngle between the incident ray and the surface of the Going directly to the water here, and then getting reflectedĪt that point on the surface of the water, and thenĬoming over to our eyes. To be the same as this angle right over there. Is that this angle, this angle right over here, is going Then this is equal to that because these two are Ray and the actual surface, but they're reallyĪ different angle, but if this is equal to that Thinks that because that's kind of the angle between the To be the angle of incidence and the angle ofĪngle, right here, is going to be equal to If this angle isĮqual to that angle- and this is what's defined And sometimes my brain hasĮasier thinking about this. Of the perspective that we're dealing with. Look like they're the same but that's just because Right here- and I know it's hard- it doesn't That's the incident angle relative to vertical. Surface of the water, right before it bounces, Here, that's the angle- Let me do that in a light color. Here, but this angle right over here- Let me draw It's actually coming straightĭraw a vertical, and it might not be that obvious Reflected, specular reflection, to our eyes. The surface of the water, and then it's getting Part of the mountain, hitting this part of the The mountain up here, and the part of the Rays, and they're actually being scattered in everyĭirection, some of them are hitting the water. That's why we don't see theĪctual image of the sun here. And we're going to talkĪbout diffuse reflection in a little bit, and Images of specular reflection, just to make it clear here. See that in a couple of images over here.
That you might experience is that the angle This for yourself at all the regular mirrors Right there, we call that the angle of reflection. Show that the angle at which we're coming in, theĪngle between this ray and the vertical right there, Surface of the actual mirror right over here, we wouldĭefine this, right here, as the angle of incidence.
So you can think aboutįront of the bathroom mirror you can thinkĪbout this, and think about the angle of incidenceĪnd the angle of reflection. With mirrors you would see- and we're going to And you may haveĪlready noticed this if you've played around a lot This the reflected ray, after it is kind ofīounced off of the surface. So then it'll hit the surface,Īnd then it'll bounce off, and it'll go just like that. That it bounces off at essentially the same angle,īut in the other direction.
Ray because it's the ray as it approaches Terminology right, this light ray coming in, Is kind of what we normally associate with reflection Is doing one or the other, or something in between. Two types of reflection, and everything that reflects
I think most of us haveĪ sense of what this is, but we'll try to get a littleīit more exact about it. Going to try to learn a little bit about reflection. In our eyes there are microscopic tiny sensors which are sensitive to light.They have 3 colors red,blue and green.If you look at a very bright thing such as the sun and close your eyes immediately you will see red.This means that red is the most sensitive to light.When you see any light source glowing brightly and when you see it and close your eyes immediately you will see green.In your case you might have seen a brightly glowing bulb.So green is less sensitive to light than red.Finally if you see a light source glowing dimly you will see blue color.So blue is least sensitive to light.One interesting fact for you that when you look at the sun immediately and close your eyes firstly you will see red color.But as the light intensity seen by our eyes decreases you will see green color then and finally you will see blue color and then you will see only black.The order of sensitivity of the receptors are:
0 kommentar(er)
