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SOLVED: Question 4 Point Which of the following is not a principal ray of a spherical mirror? ray that goes through the center of the sphere ray that approaches the mirror along a line parallel to the [1]
Get 5 free video unlocks on our app with code GOMOBILE. Which of the following is not a principal ray of a spherical mirror?
ray that goes through the focal point on the way to the mirror. ray that hits the mirror at the same place that the axis hits
Where does a ray of light that is parallel to the principal axis of a concave mirror go after it is reflected at the mirror’s surface?. A point object approaches the plane mirror with velocity $3 \hat{1}+4 \hat{j}$
The centre of the sphere of which the spherical mirror forms a part is called centre of curvature. [2]
The centre of the sphere of which the spherical mirror forms a part is called centre of curvature.. Centre of curvature is the centre of the sphere of which the spherical mirror is a part
When the incident rays are not parallel the which of the following parameters will be different when the incident rays are parallel 1.focus 2.radius of curvature 3.principal axis 4.pole [3]
Sun rays are incident on a concave mirror parallel to its principal axis. If the image of the sun is formed at 12 cm distance from a pole of the mirror
Physics Tutorial: Refraction and the Ray Model of Light [4]
One theme of the Reflection and Refraction units of The Physics Classroom Tutorial has been that we see an object because light from the object travels to our eyes as we sight along a line at the object. Similarly, we see an image of an object because light from the object reflects off a mirror or refracts through a transparent material and travel to our eyes as we sight at the image location of the object
Because light emanating from the object converges or appears to diverge from this location, a replica or likeness of the object is created at this location. For both reflection and refraction scenarios, ray diagrams have been a valuable tool for determining the path of light from the object to our eyes.
To draw these ray diagrams, we will have to recall the three rules of refraction for a double convex 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.
Which of the Following (Referred to a Spherical Mirror) Do (Does) Not Depend on Whether the Rays Are Paraxial Or Not – Physics [5]
Which of the following (referred to a spherical mirror) do (does) not depend on whether the rays are paraxial or not?. Paraxial rays are the light rays close to the principal axis
So, the focus depends on whether the rays are paraxial or marginal. The pole, radius of curvature and the principal axis of a spherical mirror do not depend on paraxial or marginal rays.
A Short Note on Rays Not Parallel to Principal Axis [6]
Axis lines in physics are demonstrated as an imaginary or real line on which something rotates or a direct line around which certain things are evenly structured. The instance of the axis is mentioned as an imaginary line that is continuing through the earth on which rotation of the earth is seen
In physics, the instance of the passing of light rays has been considered. The focal point of light rays gets deviated and refracted when the “parallel rays” of the light have passed through a “concave lens to the principal axis”
The principal axis is demonstrated as the optical axis of the lens that proceeds through the centre of optics of the lens. The principal axis is demonstrated as the line that is moving and progressing through the curvature centre of the lens faces or a curved mirror
Physics Video by Brightstorm [7]
Jonathan is a published author and recently completed a book on physics and applied mathematics.. Jonathan is a published author and recently completed a book on physics and applied mathematics.
The first principal ray occurs when the light comes in parallel to the principle axis, it goes out through the focus. The second principal ray occurs when light comes in through the focus, then it comes out parallel to the principle axis
So let’s talk about ray diagrams and Geometric optics now this is a really simple way for you to understand Geometrically where the image comes from basically from any lens or any mirror really simple and it works extremely well, if you do this on graph paper and you measure with a ruler it will come out exactly the way it’s supposed to come out. Great alright so what we’re going to do is we’re going to use straight lines to find these images, we’re going to draw 3 principal rays
Cardinal point (optics) [8]
In Gaussian optics, the cardinal points consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system. These are the focal points, the principal points, and the nodal points.[1] For ideal systems, the basic imaging properties such as image size, location, and orientation are completely determined by the locations of the cardinal points; in fact only four points are necessary: the focal points and either the principal or nodal points
Cardinal points provide a way to analytically simplify a system with many components, allowing the imaging characteristics of the system to be approximately determined with simple calculations.. The cardinal points lie on the optical axis of the optical system
The paraxial approximation assumes that rays travel at shallow angles with respect to the optical axis, so that and .[3] Aperture effects are ignored: rays that do not pass through the aperture stop of the system are not considered in the discussion below.. The front focal point of an optical system, by definition, has the property that any ray that passes through it will emerge from the system parallel to the optical axis
REFLECTION AT CURVED SURFACES [9]
We have already looked at reflection by plane mirrors in topic 8. When the reflecting surface is instead curved, we call it a curved mirror
Curved mirrors whose reflecting surfaces curve inwards are called concave mirrors while those whose reflecting surfaces bulge outwards are called convex mirrors.. – Centre of curvature C- it is the centre of the sphere of which the mirror is part.
– Principal axis- it is a line drawn through the pole of the mirror and the centre of curvature.. – Principal focus F – for a concave mirror, it is the point at which all rays parallel and close to the principal axis converge at after reflection
2.3: Spherical Mirrors [10]
– Use ray diagrams and the mirror equation to calculate the properties of an image in a spherical mirror.. The image in a plane mirror has the same size as the object, is upright, and is the same distance behind the mirror as the object is in front of the mirror
In general, any curved surface will form an image, although some images make be so distorted as to be unrecognizable (think of fun house mirrors). Because curved mirrors can create such a rich variety of images, they are used in many optical devices that find many uses
We can define two general types of spherical mirrors. If the reflecting surface is the outer side of the sphere, the mirror is called a convex mirror
Why does a ray parallel to principal axis passes from focus after reflection from a concave mirror and vice a versa is also true? Why is it so? [11]
I read this as basic rules or laws you can say in REFLECTION from concave mirror.. Why does a ray parallel to principal axis passes from focus after reflection from a concave mirror and vice a versa is also true? Why is it so?
The normal to this mirror at $X$ passes through the centre of curvature of the mirror $C$.. $\frac {h}{CP’}= \tan \alpha, \, \frac {h}{FP’}= \tan 2\alpha, \, $
$CP’ \approx CP,\, FP’ \approx FP,\, \tan \alpha \approx \alpha,\, \tan 2\alpha \approx 2\alpha$ where $P$ is the pole of the mirror.. $CP$ is a property of the mirror and $FP$, the focal length of the mirror, is thus (approximately) independent of the angle $\alpha$ as long as $\alpha$ is small.
State that the following statement is true or false,A ray of light parallel to the principal axis, after reflection, will pass through the principal focus.(A) True.(B) False. [12]
State that the following statement is true or false,. A ray of light parallel to the principal axis, after reflection, will pass through the principal focus.
The concave mirror is a mirror that is curved inward and the convex mirror is curved outward.. As we know that the convex mirror is outwardly curved in which the light rays that travel in a straight line hit the surface of the mirror, then the reflected light rays diverge from the principal axis
Since, the parallel light rays that get reflected from the convex mirror get diverged, the reflected light rays do not pass through the principal focus.. We know that the concave mirror is an inward curved mirror in which the light rays that travel parallel to the principal axis when hits the reflecting surface of the mirror, the reflected ray gets converged towards the principal axis
Sources
- https://www.numerade.com/ask/question/question-4-point-which-of-the-following-is-not-a-principal-ray-of-a-spherical-mirror-ray-that-goes-through-the-center-of-the-sphere-ray-that-approaches-the-mirror-along-a-line-parallel-to-th-14226/
- https://byjus.com/question-answer/the-centre-of-the-sphere-of-which-the-spherical-mirror-forms-a-part-is-called-1/#:~:text=The%20centre%20of%20the%20sphere,is%20called%20centre%20of%20curvature.
- https://byjus.com/question-answer/when-the-incident-rays-are-not-parallel-the-which-of-the-following-parameters-will-be/
- https://www.physicsclassroom.com/class/refrn/Lesson-5/Converging-Lenses-Ray-Diagrams
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- https://www.brightstorm.com/science/physics/light/ray-diagrams/
- https://en.wikipedia.org/wiki/Cardinal_point_(optics)
- https://peda.net/id/0ce44120319
- https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_University_Physics_(OpenStax)/University_Physics_III_-_Optics_and_Modern_Physics_(OpenStax)/02%3A_Geometric_Optics_and_Image_Formation/2.03%3A_Spherical_Mirrors
- https://physics.stackexchange.com/questions/451702/why-does-a-ray-parallel-to-principal-axis-passes-from-focus-after-reflection-fro
- https://www.vedantu.com/question-answer/state-that-the-following-statement-is-true-or-class-12-physics-cbse-5fdaeae466a68856d07a5890
