Seismic waves are mechanical.
Which of the following is/are example/s of electromagnetic waves which can travel without medium (in vacuum)?
a) sound waves
b) light waves
c) water waves
d) both a and c
Which of the following is/are example/s of electromagnetic waves which can travel without medium (in vacuum)?
a) seismic waves
b) infra-red waves
c) microwaves
d) both b and c
Which of the following is/are example/s of electromagnetic waves which can travel without medium (in vacuum)?
a) x-rays
b) water waves
c) microwaves
d) both a and c
Huge explosions occur in the sun continuously. Which of the following is/are produced during these explosions?
a) heat
b) light
c) sound
d) all of these
Light and heat from the sun reach the earth but sound can’t. Why?
a) light and heat need medium
b) sound waves need medium
c) sound waves are electromagnetic
d) all of these
Transverse Waves and Longitudinal Waves:
Transverse
waves cause the medium to move perpendicular to the direction of the
wave. Longitudinal waves cause the medium to move parallel to the
direction of the wave.
Option B is correct. Seismic waves or mechanical waves.
by at 2025-02-05 22:14:08