Reflection by Suryansh Jain https://padlet.com/suryansh0184/j79cnd0myg76eq8i Concave and Convex en-us 2020-08-31 15:47:47 UTC 2023-02-09 16:59:32 UTC hello@padlet.com Reflection suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709192182 2020-08-31 15:50:39 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709192182 What is Reflection? suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709195623
Reflection is the throwing back of light, heat, or sound without absorbing it by a body or surface.

The Laws Of Reflection are:
1) The angle of incidence is equal to the angle of reflection
2) The incident ray, the normal to the mirror at the point of incidence, and the reflected ray, all lie in the same plane.]]> 2020-08-31 15:51:31 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709195623 What are Spherical Mirrors? suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709210060 1) The curved surface of a shining spoon could be considered as a curved mirror.
2) The reflecting surface of such mirrors can be considered to form a part of the surface of a sphere.
3) Such mirrors, whose reflecting surfaces are spherical, are called spherical mirrors.]]> 2020-08-31 15:55:07 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709210060 Concave Mirror suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709215848 A spherical mirror, whose reflecting surface is curved inwards, that is, faces towards the centre of the sphere, is called a concave mirror.]]> 2020-08-31 15:56:54 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709215848 What are the Different types of Spherical Mirrors? suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709235158 2020-08-31 16:02:52 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709235158 Convex Mirror suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709239641 A spherical mirror whose reflecting surface is curved outwards, is called a convex mirror.]]> 2020-08-31 16:04:11 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709239641 What are the Components of Spherical Mirrors? suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709273707
APERTURE
It is the portion of the hollow spherical surface from which the mirror reflections take place is called the Aperture of the mirror
In the above Fig. MN is the Aperture.

POLE
The centre of the reflecting surface of a spherical mirror is a point called the pole. 
It lies on the surface of the mirror. The pole is usually represented by the letter P.

CENTRE OF CURVATURE
The reflecting surface of a spherical mirror forms a part of a sphere.
This sphere has a centre. This point is called the centre of curvature of the spherical mirror. It is represented by the letter C.
Please note that the centre of curvature is not a part of the mirror.
It lies outside its reflecting surface. The centre of curvature of a concave mirror lies in front of it.

However, it lies behind the mirror in case of a convex mirror.

RADIUS OF CURVATURE
The radius of the sphere of which the reflecting surface of a spherical mirror forms a part is called the radius of curvature of the mirror.
It is represented by the letter R.
 
 In both the above cases, PC is the Radius of Curvature.

PRINCIPAL AXIS
It is an imaginary a straight line passing through the pole and the centre of curvature of a spherical mirror.

This line is called the principal axis. Remember that the principal axis is normal to the mirror at its pole.
]]> 2020-08-31 16:14:30 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709273707 Focus of a Concave Mirror suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709348752
Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.

Remember in a Concave Mirror the Focus is in front of the mirror]]> 2020-08-31 16:34:58 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709348752 Focus of a Convex Mirror suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709375962 The light rays that converge on the principal axis after reflecting from a convex mirror and are parallel to the principal axis are called the principal focus of a convex mirror. They either actually in real meets or appears virtually to meet.

Remember in a Convex Mirror the Focus is behind of the mirror

]]> 2020-08-31 16:41:38 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709375962 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709402266 2020-08-31 16:49:03 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709402266 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709412697 A ray parallel to the principal axis, after reflection, will pass through the principal focus in case of a CONCAVE Mirror  

]]> 2020-08-31 16:52:21 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709412697 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709457532 A ray parallel to the principal axis, after reflection, will appear to diverge from principal focus in case of a CONVEX Mirror ]]> 2020-08-31 17:05:02 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709457532 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709464789 2020-08-31 17:07:21 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709464789 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709468907 A ray passing through the principal focus of a CONCAVE mirror, after reflection, will emerge parallel to the principal axis.]]> 2020-08-31 17:08:35 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709468907 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709471768 A ray that is directed towards the principal focus of a CONVEX mirror, after reflection, will emerge parallel to the principal axis.]]> 2020-08-31 17:09:31 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709471768 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709477921 2020-08-31 17:11:26 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709477921 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709492868  A ray passing through the centre of curvature of a concave mirror, after reflection, is reflected back along the same path. ]]> 2020-08-31 17:16:01 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709492868 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709494906 A ray directed in the direction of the centre of curvature of a CONVEX mirror, after reflection, is reflected back along the same path. ]]> 2020-08-31 17:16:40 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709494906 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709512246 2020-08-31 17:21:41 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709512246 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709519337 A ray incident obliquely to the principal axis, towards a point P (pole of the mirror), on the concave mirror or a convex mirror, is reflected obliquely. The incident and reflected rays follow the laws of reflection at the point of incidence (point P), making equal angles with the principal axis.]]> 2020-08-31 17:23:23 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709519337 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709536191 2020-08-31 17:28:19 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709536191 Object Kept at Infinity suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709571050 The nature of the image formed is Real, Inverted and Highly Diminished]]> 2020-08-31 17:38:59 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709571050 Object Kept Between Infinity and Centre Of Curvature suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709574567 The nature of the image formed is Real, Inverted, and Diminished.]]> 2020-08-31 17:39:52 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709574567 Object Kept Between Centre of Curvature and Focus suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709578356 The nature of the image formed is Real, Inverted and Enlarged]]> 2020-08-31 17:40:55 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709578356 Object Kept at Focus suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709581685 The nature of the image Formed is Real, Inverted  and Highly Enlarged]]> 2020-08-31 17:41:57 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709581685 Object Kept Between Pole and Focus suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709582455 The nature of the image formed is Virtual, Erect and Enlarged]]> 2020-08-31 17:42:13 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709582455 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709591231 2020-08-31 17:44:49 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709591231 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709593416 2020-08-31 17:45:25 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709593416 Object Kept at Centre Of Curvature suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709605958 The nature of the image formed Real, Inverted and of the the same size]]> 2020-08-31 17:48:31 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709605958 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709610251 2020-08-31 17:49:40 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709610251 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709613677 2020-08-31 17:50:38 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709613677 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709615669 2020-08-31 17:51:13 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709615669 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709616648 2020-08-31 17:51:27 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709616648 Object kept at Infinity suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709650576 The nature of the image formed is Virtual, Erect and Highly Diminished]]> 2020-08-31 18:02:15 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709650576 Convex Mirrors (Ray Diagrams) suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709653516 2020-08-31 18:03:16 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709653516 Object kept Between Infinity and Pole suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709659191 The nature of the image formed is Virtual, Erect and Diminished]]> 2020-08-31 18:05:14 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709659191 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709680924 2020-08-31 18:12:08 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709680924 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709686690 2020-08-31 18:13:49 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709686690 Uses of concave mirrors suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709703312  Concave mirrors are commonly used in torches, search-lights, and vehicle headlights to get powerful parallel beams of light.

 They are often used as shaving mirrors to see a larger image of the face.

The dentists use concave mirrors to see large images of the teeth of patients. Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces. ]]> 2020-08-31 18:18:44 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709703312 Uses of convex mirrors suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709713247 Convex mirrors are commonly used as rear-view (wing) mirrors in vehicles.

These mirrors are fitted on the sides of the vehicle, enabling the driver to see traffic behind him/her to facilitate safe driving.

Convex mirrors are preferred because they always give an erect, though diminished, image. Also, they have a wider field of view as they are curved outwards. Thus, convex mirrors enable the driver to view a much larger area than would be possible with a plane mirror. ]]> 2020-08-31 18:21:23 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709713247 Rules for Drawing Ray Diagrams suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709740894 2020-08-31 18:28:00 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709740894 Concave Mirrors (Ray Diagrams) suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709800432 2020-08-31 18:45:04 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/709800432 suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/715185397 Fun Fact: 2 Focal Length (Distance between Pole and the Focus) = Radius of Curvature]]> 2020-09-02 15:29:46 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/715185397 We have to take at least two rule for drawing Ray Diagrams!! suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/715270631 2020-09-02 15:51:04 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/715270631 Sign Convention suryansh0184 https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/717421349 2020-09-03 09:21:40 UTC https://padlet.com/suryansh0184/j79cnd0myg76eq8i/wish/717421349