General Reflection at Curved Surface Formulas are present here and make the most out of them. Quickly grasp the concepts present and apply the Reflection at Curved Surface Formulae while dealing with related problems. Clarify your doubts by referring

P → Pole
F → Focus
C → Centre of Curvature
F = PF → Focal length
R = PC → Radius of Curvature

Aperture → effective diameter of light reflecting area of the mirror.
Mirror Formula →
\(\frac{1}{v}+\frac{1}{u}=\frac{1}{f}\)

u, v and f represents object distance, image distance and focal focal length respectively.

1. Lateral magnification

m = \(\frac{h_{i}}{h_{0}}=-\frac{v}{u}\)

2. Cartesian sign convention

• All distances are measured from the pole (P) and P is the origin.
• Distances measured to the right of the pole are taken as positive.
• Distances above the principal axis are taken as positive.
• Angles measured from the normal in the anticlockwise sense are positive.

3. NewtonΓÇÖs formula

(i) Position of real object and real image are interchangeable. If I₁ and I₂ is the height of the image

Then, h₀ = \(\sqrt{\mathrm{I}_{1} \mathrm{I}_{2}}\)
I₁ = –\(\frac{v}{u} h_{0}\)
I₂ = –\(\frac{\mathrm{u}}{\mathrm{v}} \mathrm{h}_{\mathrm{o}}\)

(ii) If distance of object and image is measured from focus instead of pole then,
x₀y_i = f²
Where x₀, y_i and f are object distance, image distance from the focus and focal length respectively.

Explore more formulae on related concepts from the portal Physicscalc.Com and understand the concepts behind them easily.