Question

I) Define:-

1) Pole 2) Center of curvature 3) Principal axis

4) Radius of curvature 5) Focal Length 6) Focus



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Answer 1

Explanation:

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your answer

Answer 2

Answer:

pole -Pole is the two points which r variable on the surface of the earth which is pointed by the magnetic needle.

Center of curvature -In geometry, the center of curvature of a curve is found at a point that is at a distance from the curve equal to the radius of curvature lying on the normal vector. It is the point at infinity if the curvature is zero. The osculating circle to the curve is centered at the centre of curvature.

Principal axis -The principal axis is called a line that passes via the centre of the surface of a spherical mirror or lens and through the centre of curvature of all segments of the mirror or lens.

Radius of curvature -The distance between the center of curvature and pole of a spherical mirror is called radius of curvature. ... So f = 24/2 = + 12 cm It is a convex mirror.

Focal Length -the distance between the centre of a lens or curved mirror and its focus.

Focus-( Entry 1 of 2) 1a : a center of activity, attraction, or attention the focus of the meeting was drug abuse put immigration into focus as a hot topic for commentators. b : a point of concentration. 2 : directed attention : emphasis The focus is on helping the homeless.