LUDO › Simulations › Geometrical Optics

Candle and Screen

This simulation series is based on concept of Thin lenses. A thin lens bends the light from every point of an object. All that light meets again at one place, and that place is the image. The focal length and the object's distance fix that place and the image's size.

Physics · Class 12 · Thin lenses · 7 simulations. For JEE, NEET and your boards.

A picture of the Candle and Screen simulation

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What you'll learn

  1. Catch the flame A candle stands in front of a convex lens. Find where its sharp image forms.
  2. How tall A candle stands in front of a convex lens. Find the height of its image.
  3. Power to focus A lens carries a power mark. Find where it focuses light from a far lamp.
  4. Screen already fixed A screen stands at a fixed place behind a lens. Find where the candle must stand.
  5. Closest screen A candle and a screen must come as close as possible. Find where the candle stands.
  6. Burning glass Sunlight passes through a lens onto a meter. Find the brightness the meter reads.
  7. Drone camera A camera high above the ground fits a square patch onto its film. Find its focal length.