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What is An incident ray that passes through the focal point of a lens?
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What happens when a light ray passes through a focal point and then passes through a covex mirror?
Focal point of which mirror? Because convex mirror would have a virtual focus which is assumed to be at the back of the mirror.
Difference between focal point and focal length?
The focal point is the point where light converges after it passes through a concave lens. The focal length is the distance of the focal point to the lens. Same for a convex lens, except that the focal point is the imaginary point from where light deflected from lens seems to have emerged.
What will happen to the focal length of a concave mirror or a convex mirror when the incident violet light on them is replaced by red light?
Nothing. The focal length is defined as point where all of the light converges after passing through the lens ( for a convex mirror)and only depends on the mirror's curvature. So changing the incident light ray will cause no change in the focal length of the mirror.
Why do things look blurry through a magnifying glass?
I think the answer could be that each magnifying glass has what is known as a focal point, where an object being looked at can be seen clearly when it is at the focal point. If the object being looked at is outside that point it will look blurry. One also has to take into consideration the quality of the magnifying glass. Robert
Which light rays striking a concave mirror are reflected so that they pass through they focal point?
Rays which are parallel to the axis of the concave mirror will converge to the focal point.
What happens when a light ray passes through a focal point and then passes through a covex mirror?
Focal point of which mirror? Because convex mirror would have a virtual focus which is assumed to be at the back of the mirror.
Difference between focal point and focal length?
The focal point is the point where light converges after it passes through a concave lens. The focal length is the distance of the focal point to the lens. Same for a convex lens, except that the focal point is the imaginary point from where light deflected from lens seems to have emerged.
What are the three laws governing light passing through a converging lens?
Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens.Any incident ray traveling through the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.An incident ray that passes through the center of the lens will in effect continue in the same direction that it had when it entered the lens.
What happens to light that passes through a convex lens?
Light travelling through a concave lens will spread out. In most optical systems that use a concave lens, such as a telescope that needs to magnify the focal plane image, this is a desirable effect.
What will happen to the focal length of a concave mirror or a convex mirror when the incident violet light on them is replaced by red light?
Nothing. The focal length is defined as point where all of the light converges after passing through the lens ( for a convex mirror)and only depends on the mirror's curvature. So changing the incident light ray will cause no change in the focal length of the mirror.
Why is the ray of light parallel to the principal axis passes through the focus?
Well this only occurs if the lens is parabolic. It is just a fundamental feature of a parabola to reflected an incident ray parallel to the principal axis through the focal point. That is why lenses etc are parabolic. I dont know if this answers your question (it probably doesnt) but oh well...
Why do things look blurry through a magnifying glass?
I think the answer could be that each magnifying glass has what is known as a focal point, where an object being looked at can be seen clearly when it is at the focal point. If the object being looked at is outside that point it will look blurry. One also has to take into consideration the quality of the magnifying glass. Robert
Which correctly describes the path of a light ray that passes through a convex lens parallel to the major axis?
The light ray will bend towards the major axis, aiming for the focal point.
What type of image does a Convex mirror produce and Why?
A convex mirror produces a virtual image, because the principle light rays incident on the mirror surface from the object must pass through the focal point on the other side of the mirror (virtually), and so the image appears at a depth behind the mirror's surface. The three principle rays that form the focused image are: 1. The ray from the top of the object, parallel to the line passing through the center of the convex mirror, must pass through the focal point behind the mirror's surface. 2. The ray that passes from the top of the object and through the focal point in front of the mirror, comes through the mirror (virtually) parallel to the center line. 3. The ray that passes from the top of the object to the point where the surface of the mirror and the center line intersect, the reflection of which is traced back through the mirror's surface at the same angle as the reflected angle. The place behind the mirror where these rays intersect is the placement of the virtual image.
What two things does a focal point of a lens depend on?
FOCAL PLANEA plane perpendicular to the axis of an optical system and passing through the focal poit of the systemFOCAL POINTA point of convergence and divergnce of light and other radiations
Which light rays striking a concave mirror are reflected so that they pass through they focal point?
Rays which are parallel to the axis of the concave mirror will converge to the focal point.
What happen when light passes through a regular lens?
1. - It is refracted (bent) relative to the source. 2. - The spectrum is separated, the amount depending on the thickness and curvature. 3. - A small part of the light is reflected off the lens, not passing through it. 4. - Assuming a 'perfect' regular (convex) lens, all light passing through the lens focuses at a single point in space, (focal point). 5. - Any image passing through the lens is reversed, equidistant from the focal point.
