What is transverse wave motion give examples?
Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave’s advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.
What is transverse wave motion give examples Class 11?
If the particles of a medium vibrate in a direction normal to the direction of propagation of wave, the motion is called transverse wave motion, e.g., stretched strings of violin, guitar, sitar, sonometer etc. Electro-magnetic waves are also transverse in nature.
What best describes a longitudinal wave?
Longitudinal waves are waves in which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport.
What is the key difference between mechanical and electromagnetic waves?
Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not. The mechanical waves need a medium like water, air, or anything for it to travel.
How is a mechanical wave different from an electromagnetic wave?
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
What again is an electromagnetic wave?
Light and other electromagnetic waves Light is not the only example of an electromagnetic wave. An electromagnetic wave can be created by accelerating charges; moving charges back and forth will produce oscillating electric and magnetic fields, and these travel at the speed of light.
Is current an electromagnetic wave?
2 Answers. Electric current is the movement of electric charge through a conductor. An electromagnetic wave does not require a conductor. Electromagnetic waves are created by moving electric charges, but once created, they can propagate through a vacuum.
Can DC current produce electromagnetic waves?
Answer: They aren’t EM waves, because by definition a DC signal (or power) is unchanging, so there can be no wave propagation going on. This transient current is AC, and is actually a propagating EM wave that generates fluctuating EM fields (magnetic and electric) as it travels along.
What is a dc magnetic field?
DC FIELDS: Sometimes referred to as the geomagnetic field, this field provides a compass with the ability to indicate the direction of magnetic North. The “field strength” of the Earth’s magnetic field varies from place to place on the globe, but is generally between 350 – 500 milliGauss (mG).
What property is the same for all electromagnetic waves?
Electromagnetic waves are members of a family of waves with common properties called the electromagnetic spectrum. travel at exactly the same speed in a vacuum, the speed of light, 300,000,000 m/s.
What are 3 properties of electromagnetic waves?
Electromagnetic waves are typically described by any of the following three physical properties: frequency (f), wavelength (λ), or intensity (I). Light quanta are typically described by frequency (f), wavelength (λ), or photon energy (E). The spectrum can be ordered according to frequency or wavelength.