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We have to take at least two rule for drawing Ray Diagrams!!

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We have to take at least two rule for drawing Ray Diagrams!!

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Fun Fact: 2 Focal Length (Distance between Pole and the Focus) = Radius of Curvature

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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.

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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.

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 01_23_25 (4)

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Profile 1 - Microsoft​ Edge 31-08-2020 23_38_04 (2)

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The nature of the image formed is Virtual, Erect and Diminished

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The nature of the image formed is Virtual, Erect and Highly Diminished

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 13_40_24 (2)

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 13_40_11_LI (2)

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The nature of the image formed Real, Inverted and of the the same size

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 13_39_59 (3)

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The nature of the image formed is Virtual, Erect and Enlarged

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The nature of the image Formed is Real, Inverted  and Highly Enlarged

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Object Kept Between Centre of Curvature and Focus

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Object Kept Between Centre of Curvature and Focus

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The nature of the image formed is Real, Inverted and Enlarged

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Object Kept Between Infinity and Centre Of Curvature

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Object Kept Between Infinity and Centre Of Curvature

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The nature of the image formed is Real, Inverted, and Diminished.

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The nature of the image formed is Real, Inverted and Highly Diminished

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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.

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 13_18_44 (3)

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A ray directed in the direction of the centre of curvature of a CONVEX mirror, after reflection, is reflected back along the same path.

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A ray passing through the centre of curvature of a concave mirror, after reflection, is reflected back along the same path.

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 13_17_17 (2)

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A ray that is directed towards the principal focus of a CONVEX mirror, after reflection, will emerge parallel to the principal axis.

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A ray passing through the principal focus of a CONCAVE mirror, after reflection, will emerge parallel to the principal axis.

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 00_41_10 (3)

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A ray parallel to the principal axis, after reflection, will appear to diverge from principal focus in case of a CONVEX Mirror

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A ray parallel to the principal axis, after reflection, will pass through the principal focus in case of a CONCAVE Mirror

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Define pole of a mirror - Home Work Help - Learn CBSE Forum - Google Chrome 28-08-2020 22_09_24 (3)

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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

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 01_23_25 (4)

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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

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NCERT Books for Class 10 Science Chapter 10 Light Reflection and Refraction.pdf - Google Drive - Google Chrome 29-08-2020 01_23_25 (3)

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What are the Components of Spherical Mirrors?

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What are the Components of Spherical Mirrors?

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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.

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A spherical mirror whose reflecting surface is curved outwards, is called a convex mirror.

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Write any seven differences between concave and convex mirror - CBSE Class 7 _ CBSE Class 7 Science - Learn CBSE Forum - Google Chrome 28-08-2020 17_07_46 (3)

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What are the Different types of Spherical Mirrors?

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What are the Different types of Spherical Mirrors?

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A spherical mirror, whose reflecting surface is curved inwards, that is, faces towards the centre of the sphere, is called a concave mirror.

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Write any seven differences between concave and convex mirror - CBSE Class 7 _ CBSE Class 7 Science - Learn CBSE Forum - Google Chrome 28-08-2020 17_07_46 (4)

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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.

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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.