Optics Calculator - Light and Lens Properties

This physics calculator helps you calculate optics parameters including lens equations, magnification, focal length, and refraction. Optics is essential for understanding light behavior and optical instruments.

Optics Definition

• Optics: Study of light and its interactions
• SI Unit: m (meter) for focal length
• Formula: 1/f = 1/u + 1/v (lens equation)
• Refraction: n₁sin(θ₁) = n₂sin(θ₂) (Snell's law)

Optics Formulas

• Lens Equation: 1/f = 1/u + 1/v
• Magnification: M = h'/h = -v/u
• Snell's Law: n₁sin(θ₁) = n₂sin(θ₂)
• Critical Angle: θc = arcsin(1/n)
• Lens Power: P = 1/f
• F-Number: f/# = f/D

Applications

• Photography: Camera lenses and apertures
• Microscopy: Magnification and resolution
• Telescopes: Astronomical observations
• Eyeglasses: Vision correction
• Fiber Optics: Communication systems
• Lasers: Coherent light sources

Important Notes

• Converging lenses have positive focal length
• Diverging lenses have negative focal length
• Real images are inverted
• Virtual images are upright
• Refraction depends on wavelength

Optical Elements

• Lenses: Converging and diverging
• Mirrors: Plane, concave, convex
• Prisms: Dispersion and reflection
• Filters: Wavelength selection
• Polarizers: Light polarization

Common Examples

• Camera Lens: Focal length and aperture
• Microscope: High magnification
• Telescope: Long focal length
• Eyeglasses: Vision correction
• Rainbow: Dispersion of light

Optics Units

• Focal Length: m, cm, mm
• Power: diopters (D)
• Magnification: dimensionless
• Wavelength: m, nm, Å
• Angle: degrees, radians

Optics Measurement

• Focal Length: Lens testing
• Refractive Index: Refractometers
• Magnification: Image comparison
• Resolution: Resolution charts
• Transmission: Spectrophotometers