define the following
a)pole b)centre of curvature c)principal axis d)principal focus e)focal length f)focal plane g)apesture [light reflection &refraction]
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define the following
a)pole b)centre of curvature c)principal axis d)principal focus e)focal length f)focal plane g)apesture [light reflection &refraction]
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Answer:
I will not define it hehehehehehehe
Answer:
a) Pole : a long, slender, rounded piece of wood or metal, typically used with one end placed in the ground as a support for something.
b) Centre of curvature : the centre of a circle which passes through a curve at a given point and has the same tangent and curvature at that point.
c) Principal axis : the line passing through the optical centre and centres of curvature of the faces of a lens or a curved mirror.
d) Principal focus : the focus for a beam of incident rays parallel to the axis.
e) focal length: the distance between the centre of a lens or curved mirror and its focus.
f) Focal plane :the plane through the focus perpendicular to the axis of a mirror or lens.
g) Aperture : An aperture is a hole or an opening through which light travels.