Kostenloser Mirror Equation Rechner
Berechnen Sie image position for concave und convex mirrors. Kostenloser mirror equation Rechner.
Bildentfernung
40.00 cm
Image Distance vs Focal Length (+ concave, - convex)
Formel
## Mirror Equation The mirror equation is identical in form to the thin lens equation. ### Formula **1/f = 1/d_o + 1/d_i** For a concave mirror, f is positive. For a convex mirror, f is negative. The focal length equals half the radius of curvature: f = R/2.
Lösungsbeispiel
An object 40 cm from a concave mirror with f = 20 cm.
- 011/f = 1/do + 1/di
- 021/20 = 1/40 + 1/di
- 031/di = 1/20 - 1/40 = 1/40
- 04di = 40 cm
- 05M = -40/40 = -1 (inverted, same size)
Häufig Gestellte Fragen
What is the difference between a concave and convex mirror?
A concave mirror curves inward (like a bowl) and can form real images. A convex mirror curves outward and always forms virtual, diminished images.
Where are concave mirrors used?
In telescopes, shaving/makeup mirrors, flashlight reflectors, and satellite dishes.
Why do convex mirrors show a wider view?
Convex mirrors diverge reflected light, creating a smaller virtual image but capturing a larger field of view. This is why they are used for rear-view mirrors.
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