Class 12 Physics simulations · Wave Optics

Fringe width in Young’s experiment

Change the geometry and see the bright-fringe spacing respond.

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What to notice

Wider slit separation squeezes the fringes closer together.

Key relation

β = λD/d

Try this

Halve the slit separation and watch the fringes spread.

What you can change

• Wavelength: 400 to 700 nm
• Slit separation: 0.1 to 1 mm
• Screen distance: 0.5 to 3 m

More in Wave Optics

• Brewster’s angle
• Single slit diffraction
• Diffraction grating orders
• Double slit interference
• Polarisation and Malus’s law
• Resolving two stars (Rayleigh criterion)
• Thin-film interference

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