Lenses, mirrors, Snell's law, diffraction, interference, and light calculators.
Most used tools
Apply the thin lens equation 1/f = 1/v - 1/u to find unknown optical quantities.
Solve the mirror equation 1/f = 1/v + 1/u for concave and convex mirrors.
Apply Snell's law n1 sin theta1 = n2 sin theta2 to find the angle of refraction.
Use the lens maker's equation to calculate focal length from lens geometry and material.
Find image distance v from known object distance u and focal length f.
Compute lens power P = 1/f in diopters from the focal length in meters.
15 tools available
Apply the thin lens equation 1/f = 1/v - 1/u to find unknown optical quantities.
Solve the mirror equation 1/f = 1/v + 1/u for concave and convex mirrors.
Compute magnification M = -v/u to find image size and orientation.
Apply Snell's law n1 sin theta1 = n2 sin theta2 to find the angle of refraction.
Find the critical angle theta_c = arcsin(n2/n1) above which total internal reflection occurs.
Compute focal length f = R/2 from the mirror's radius of curvature.
Use the lens maker's equation to calculate focal length from lens geometry and material.
Calculate a mirror's focal length from its object and image distances.
Find image distance v from known object distance u and focal length f.
Calculate the object distance u needed for a desired image distance and focal length.
Compute lens power P = 1/f in diopters from the focal length in meters.
Compute light intensity I = P/A in watts per square meter.
Apply Malus's law I = I0 cos^2(theta) to find transmitted polarized light intensity.
Use d sin(theta) = m * lambda to find diffraction maxima angles for a grating.
Compute fringe spacing y = lambda * L / d in Young's double-slit experiment.
Our optics calculators provide accurate, instant results for physics calculations. Whether you need to compute forces, velocities, energies, or other physical quantities, these tools have you covered.
