Understanding LASERs

What is one of the most impressive capabilities of LASERs mentioned in the introduction?

• They can be used as toys.

• They can cut through diamonds.

• They can be used for lighting.

• They can change colors.

Who is credited with building the first LASER?

• Theodore H. Maimann

• Albert Einstein

• Charles Hard Townes

• Arthur Leonard Schawlow

What is a photon?

• A type of electron

• A type of wave

• A packet of energy

• A unit of sound

Why is LASER light different from regular light?

• It can be amplified and is monochromatic.

• It cannot be focused.

• It is always visible.

• It is always red.

In which field is LASER technology NOT mentioned as being used?

• Cooking

• Medical surgeries

• Forensic science

• Automobile industry