What is the difference between a laser light and an incandescent light?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

An incandescent light is a more technical term for traditional light bulbs, which produce light via incandescence. This is the term for the light emitted by objects when they're heated, in the same way that some metals will glow when placed in a fire. Incandescent lights use a piece of wire, usually tungsten, and transmit electrical energy into the wire, heating it until it's hot enough to glow. Note that not all light bulbs are incandescent; in many places they're being replaced with various other types of bulbs, such as fluorescent lights, due to the poor efficiency and lifetime of incandescent bulbs.

The main point of comparison between an incandescent and laser light is in the...

(The entire section contains 351 words.)

Unlock This Answer Now

Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Start your 48-Hour Free Trial
Approved by eNotes Editorial Team