Draw a ray diagram for a a concave mirror with the object...

Draw a ray diagram for a. A concave mirror with the object distance between the focal point and the mirror b. A concave mirror with the object distance between the focal point and the centre of curvature. c. A concave mirror with the object distance past the centre of curvature. d. A convex mirror with the object at any distance away

Transcript

00:01 Hello students here we have four questions the first question is that the object of a convex sorry concave mirror mirror so let's draw it first so this is the concave mirror okay this is the concave mirror you can see this is the mirrored surface so what happens is that we have the object placed between the focus and the pole or origin this is where we place the object you need to find out where the image forms so the first we have two rays need to be considered first ray right goes through the focus right goes through the focus so that will go like this this way it will go like this and the second ray which will go through the center so it will go something like this okay and these two rays will converge converge at a point at a point and this is that point where the image is formed so the image will be larger larger than the original so that will be the image formation for the first question and for the second question we have the same situation we have a concave mirror okay so this is the concave mirror and we have an object which is placed between this is the focus and this is the center of curvature so an object which is placed between focus and center of curvature okay so we have two rays first ray goes like this come back come backs through the focus okay and then we have the second ray which goes to the center and then comes back right comes back at some point okay and then goes like this.

02:13 So the image will be formed here and the image will be inverted, inverted and it will be bigger in size.

02:22 So that's the second question.

02:25 Now going through the third question, going to the third question, we have a convex, sorry, concave lens again, right? this is a concave lens and we have an image formation.

02:44 Where the object is now placed this is the center of curvature and this is the focal length an object is placed beyond the center of curvature so that means a ray will goes like this and then comes back through the focus okay this is the only principle you need to understand and then another ray will go to the the origin or pole and then comes back and the image will form at this point.

03:15 So it will be between center of curvature and focus and the image will be inverted, inverted small...

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