Light waves are different from sound waves in that-.....

Report

Report an issue

Name

Email

Message

Submit

Cancel

RRB TC CC Exam (Bangalore) 2006 click here to view all questions

Light waves are different from sound waves in that-.....

Alight waves are electromagnetic but sound waves are not

Blight waves can travel through water but sound waves cannot

Clight travels with the same speed in all media

Dlight waves produce interference but sound waves do not

Akilesh Kharvi ? Nov 13 '2016 at 9:55

Answer is : light waves are electromagnetic but sound waves are not

Sound and light waves are very different, even though they are both considered to be "waves". Perhaps the biggest difference between the two would be how they travel around. Sound requires some form of medium to travel, because it is mostly a change in pressure. For example, with air, the change of air pressure would be the form of transportation for sound waves. Or water, where the water pressure would be how the sound moves.

 

Light, however, is an electromagnetic wave. This means that it needs a combination of electricity and magnetic fields in order to travel places. Which means that it does not require air, water, etc, to travel.

They also differ in speed. Sound travels at about a foot per millisecond, while light travels at about 186,000 miles per second. 

All DiscussionsClick here to write answer

Answer is : light waves are electromagnetic but sound waves are not Sound and light waves are very different, even though they are both considered to be "waves". Perhaps the biggest difference between the two would be how they travel around. Sound requires some form of medium to travel, because it is mostly a change in pressure. For example, with air, the change of air pressure would be the form of transportation for sound waves. Or water, where the water pressure would be how the sound moves.   Light, however, is an electromagnetic wave. This means that it needs a combination of electricity and magnetic fields in order to travel places. Which means that it does not require air, water, etc, to travel. They also differ in speed. Sound travels at about a foot per millisecond, while light travels at about 186,000 miles per second.  Akilesh Kharvi ? answered Nov 13 '2016 at 9:55 All Comments

Post your answers here:

Post

Post your comments here:

Message

Post

Cancel