Class 10 Physics simulations · Light – Reflection and Refraction

Two thin lenses in contact

Combine converging and diverging lenses and discover their equivalent optical power.

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What to notice

Equal and opposite powers cancel, making an afocal pair in the thin-lens limit.

Key relation

Peq = P₁ + P₂; feq = 1/Peq

Try this

Choose +5 D and −5 D to cancel the optical power.

What you can change

• First lens power: -10 to 10 D
• Second lens power: -10 to 10 D

More in Light – Reflection and Refraction

• Real and apparent depth
• Image in a concave mirror
• Refraction through a glass slab
• Image through a convex lens
• Images in two inclined mirrors
• Refraction and total internal reflection
• Spherical mirrors: ray diagram

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