Explain why it is difficult to locate the focal point of a concave len

1.	Explain why it is difficult to locate the focal point of a concave lens.
Answer» $\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$ If the light source is 12 cm from the cornea and the image MAGNIFICATION is 0.032, what is the radius of curvature of the cornea? and then solve for the focal length f. SIGNIFICANCE The focal length is negative, so the focus is virtual, as expected for a concave MIRROR and a real object. $\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$ $\huge\fbox{\red{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}$ $\large\bf{\underline\blue{❥thαnk \; чσu ♥♥}}$

Explain why it is difficult to locate the focal point of a concave lens.

Answer»

$\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$

If the light source is 12 cm from the cornea and the image MAGNIFICATION is 0.032, what is the radius of curvature of the cornea? and then solve for the focal length f. SIGNIFICANCE The focal length is negative, so the focus is virtual, as expected for a concave MIRROR and a real object.

$\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$