How Does Water Magnify Things?

Converging lenses are used to magnify things.
••• lens image by Rog999 from

Behavior of Light

Light rays travel in straight lines. When they strike an opaque surface, the rays bounce, and light is reflected back to your eye so that you see an image. When light strikes a transparent object, some of the light passes through. If that light strikes the object straight on, it continues to travel in a straight line. If the light enters the transparent object at an angle, though, it changes direction, bending.

Light Refraction

This bending of light is called refraction. Refraction occurs because light entering an object slows down. When it enters at an angle, one side of the light ray enters before the other, slowing down first. You can imagine this by picturing a speeding car that suddenly has the brakes applied to one side only--the car would spin in the direction of the side that suddenly slows down.

Light in Water

Looking from above, an object under water appears larger than it does in air. It's not that the image the light gave our eyes is bigger. It's that the image is actually closer to our eyes, since the light is not passing straight down, but is instead bending relative to the water's surface. Light passing straight down would be perpendicular to the water's surface, like the vertical line on the letter T. A closer image looks bigger--the underwater object is magnified.

Related Articles

What Makes Light Reflect Off of Mirrors?
What Is the Difference Between Concave & Convex Mirrors?
What Astronomical Instrument Measures the Brightness...
How is Light Transmitted?
How to Convert Lux to Candela
Types of Mirrors and Lenses
How Are Concave Mirrors Used?
How to Convert Watt Hours Per Meter Squared to Lux...
How to Calculate Brewster's Angle
What Are the Causes of Flickering Stars?
The Focal Length of Microscope Objectives
In Which of These Materials Does Light Travel the Slowest:...
What Affects the Angle of Refraction of Light?
How to Teach Light Refraction to Preschoolers
How to Project a Hologram
Scientists Have Developed a Real-Life Invisibility...
What Is the Sun's Role in Photosynthesis?
What Is Diffused Light?

Dont Go!

We Have More Great Sciencing Articles!