Flashcards: Fundamentals of Light and Optical Phenomena — 24 cards

Light — definition?

A form of energy that makes objects visible.

Properties of light — key?

Reflection, refraction, dispersion.

Reflection law — statement?

Angle of incidence equals angle of reflection.

Image in plane mirror — type?

Virtual, erect, same size as object.

Lateral inversion — effect?

Left and right are reversed in mirror images.

Multiple images — formula?

n = 360°/θ - 1 (if integer).

Spherical mirror — types?

Concave and convex.

Mirror formula — equation?

1/f = 1/v + 1/u.

Refraction — mechanism?

Bending of light passing between media.

Refractive index — formula?

n = sin i / sin r.

Real vs apparent depth — ratio?

Real depth / apparent depth = refractive index.

Lenses — types?

Convex (converging), concave (diverging).

Concave mirror — image?

Can form real or virtual images.

Convex mirror — image?

Virtual, erect, diminished.

Mirror formula — purpose?

Calculates image/object distances and focal length.

Light — travel?

In straight lines, reflected, refracted, dispersed.

Refraction — causes?

Change in light speed in different media.

Refractive index — significance?

Indicates how much light bends in a medium.

Real depth — relation?

Real depth = apparent depth × refractive index.

Apparent depth — cause?

Refraction makes objects seem closer underwater.

Lenses — converging?

Convex, used in magnifiers, hypermetropia.

Lenses — diverging?

Concave, used in myopia correction.

Lateral inversion — occurs?

In plane mirrors, left-right reversal.

Number of images — in two mirrors?

n = 360°/θ - 1, if integer.