Question

Explain all the terms related to the sperical mirror

Answer 1

Hello Dear ,
Here is your required answer
1) Centre of curvature
It is the centre of the sphere from which the mirror forms a part.

2)Pole
The centre of the reflecting surface of a spherical mirror

3) Principal Axis
A straight line which passes through the centre of curvature and the pole of a spherical mirror

4)Radius of curvature
The radius of the sphere of which the mirror forms a part

5)Aperture
The diameter of the reflecting surface of a spherical mirror


6) Principal focus
A point on the principal axis to which all the light rays parallel to the principal axis converge after reflection from the mirror in concave mirror

In the convex mirror the principal focus is a point on the principal axis to which all the reflected rays appears to come from




7)Focal length
The distance between principal focus and the pole of a spherical mirror




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Answer 2

⭐A spherical mirror, whose reflecting surface is curved inward or outward.
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⭐The reflecting surface of a spherical mirror forms a part of a sphere. this sphere has a centre. This point is called centre of curvature. It's represented by '' C''.
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⭐The radius of the sphere of which the reflecting surface of a spherical mirror form a part, is called the radius of the curvature of the mirror. It's represented by R.
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⭐Imagine a straight line passes through through the pole and the centre of curvature of a spherical mirror. This line is called the principal axis.

⭐The centre of the reflecting surface of a spherical mirror is a point called pole.




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