Q. A laser beam is used for carrying out surgery because it
A) Is highly monochromatic
B) Is highly coherent
C) Is highly directional
D) Can be sharply focused
Explanation
(b) A laser beam is used for carrying out surgery because, it can be sharply focused due to a very high energy per unit area is involved at a location.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.