To draw the normal at any point on a spherical mirror, you draw a line perpendicular to the mirror's surface at the point of interest. This normal line represents the direction in which light rays will be reflected off the mirror surface. The normal is crucial for determining the angle of incidence and reflection at that point on the mirror.
To draw a ray diagram for a concave mirror, follow these steps: Draw the concave mirror as a curved line with a focal point (F) in the middle. Draw the object (usually an arrow) outside the mirror, beyond the focal point. Draw three rays: one parallel to the principal axis that reflects through the focal point, one through the focal point that reflects parallel to the principal axis, and one that goes through the center of curvature and reflects back on itself. Where the reflected rays intersect is where the image will form.
Place a plane mirror on the table. Take a paper sheet and make a small hole in its centre. Make sure that the light in the room is not bright. Hold the sheet normal to the table. Take another sheet and place it on the table in contact with the vertical mirror. Draw a normal line on the second sheet from the mirror. Now, light a torch on the mirror through the small hole such that the ray of light falls on the normal at the bottom of the mirror. When the ray from this hole is incident on the mirror, it gets reflected in a certain direction. You can easily observe the incident ray, reflected ray and the normal to the mirror at the point of incidence on the sheet placed on the table. This shows that the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
A convex mirror always forms virtual, erect, and diminished images irrespective of the object's position. This is because incident rays diverge upon reflection, causing them to appear to converge at a point behind the mirror. As a result, the image in a convex mirror doesn't flip because it is always virtual and appears behind the mirror.
To draw an object at infinity for a concave mirror reflection, draw a parallel line to the principal axis passing through the focal point. This line represents the path of light rays coming from infinity. It's not necessary to physically draw an object at infinity, but understanding how the rays behave from afar helps in analyzing the image formation for concave mirrors.
When a point P is placed between two perpendicular mirrors, the first image is formed by one mirror, and the second image is formed by the other mirror. The third image is the reflection of the second image on the first mirror. To locate the images, draw the path of light rays reflecting off each mirror. The images of P will appear symmetrically around the point of intersection of the two mirrors.
At the point where the rays meet at the mirror, draw a line at right angles to the mirror (normal means 90 degrees)
To draw a ray diagram for a concave mirror, follow these steps: Draw the concave mirror as a curved line with a focal point (F) in the middle. Draw the object (usually an arrow) outside the mirror, beyond the focal point. Draw three rays: one parallel to the principal axis that reflects through the focal point, one through the focal point that reflects parallel to the principal axis, and one that goes through the center of curvature and reflects back on itself. Where the reflected rays intersect is where the image will form.
Place a plane mirror on the table. Take a paper sheet and make a small hole in its centre. Make sure that the light in the room is not bright. Hold the sheet normal to the table. Take another sheet and place it on the table in contact with the vertical mirror. Draw a normal line on the second sheet from the mirror. Now, light a torch on the mirror through the small hole such that the ray of light falls on the normal at the bottom of the mirror. When the ray from this hole is incident on the mirror, it gets reflected in a certain direction. You can easily observe the incident ray, reflected ray and the normal to the mirror at the point of incidence on the sheet placed on the table. This shows that the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
The convex mirror diverges light rays, so if you draw the reflected rays in front of the mirror and continue drawing them at the back of the mirror the virtual light rays (at the back of the mirror) will join. This point is called a Virtual Focus Point.
Draw a vertical line through the triple point.
A convex mirror always forms virtual, erect, and diminished images irrespective of the object's position. This is because incident rays diverge upon reflection, causing them to appear to converge at a point behind the mirror. As a result, the image in a convex mirror doesn't flip because it is always virtual and appears behind the mirror.
Draw a vertical line through the triple point.
draw line down the middle and fold over without overlap or point mirror down centre point and see if there is same shape
Ray diagrams are drawings that use simple geometry to locate an image formed by a mirror. In order to draw a ray diagram, first sketch the situation; draw the location and arrangement of the mirror and the position of the object with respect to the mirror. Construct the drawing so that the object and the image distances are proportional to their actual size. Then, draw to rays on your diagram. Draw the first ray from the object perpendicular to the mirror's surface. Since it makes and angle of 0 degree with the normal to the mirror, the angle of reflection also equals 0 degree, causing the ray to reflect back on itself. Draw the second ray from the object to the mirror, but this time place the ray at an angle that is not perpendicular to the surface of the mirror.Then draw the reflected ray. Next, trace both reflected rays back to the point from which they appear to have originated, which is behind the mirror. Use dotted lines to draw the rays to distinguish them from the actual rays of light. By continuing this process for all other parts of the object, you will be able to locate the complete virtual images for the object.
No. I don't honestly know why just that it doesn't because my teacher said so but she could be wrong. Some teachers can be pretty stupid. Yes of course. Don't spew nonsense. It's a LAW. All you have to do to prove this point, is to draw a semi-major axis, aka tangent to any point on the curved surface, draw the normal, then reflect the incoming ray. If you do this for parallel rays coming onto the curved surface, you'll realize that the reflected rays converge at one point, the focal point, because the curved mirror acts as a lens as well.
You could draw two arcs from the North pole to the equator, with a 10 degree separation. The two arcs and the equator would form a 190 degree spherical triangle.
We can draw 3 normals to a parabola from a given point as the equation of normal in parametric form is a cubic equation.