IIT JAM Exam > IIT JAM Questions > Electromagnetic waves _______.a)carry energyb...
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Electromagnetic waves _______.
- a)carry energy
- b)carry momentum
- c)are transverse in nature while travelling in vacuum
- d)do not need a material medium to travel
Correct answer is option 'A,B,C,D'. Can you explain this answer?
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Electromagnetic waves _______.a)carry energyb)carry momentumc)are tran...
**Electromagnetic waves carry energy, momentum, are transverse in nature while traveling in a vacuum, and do not need a material medium to travel.**
**1. Electromagnetic waves carry energy:**
- Electromagnetic waves are a form of energy that is propagated through space via oscillating electric and magnetic fields.
- The energy carried by electromagnetic waves is proportional to their frequency and inversely proportional to their wavelength. Higher frequency waves carry more energy.
**2. Electromagnetic waves carry momentum:**
- According to the theory of electromagnetism, electromagnetic waves consist of oscillating electric and magnetic fields that propagate through space.
- These oscillating fields exert a force on charged particles, causing them to experience a change in momentum.
- Therefore, electromagnetic waves carry momentum.
**3. Electromagnetic waves are transverse in nature while traveling in a vacuum:**
- Electromagnetic waves are characterized by the oscillation of electric and magnetic fields perpendicular to the direction of wave propagation.
- In a vacuum (or in free space), electromagnetic waves travel as transverse waves, where the oscillations of the electric and magnetic fields are perpendicular to the direction of wave propagation.
- This is in contrast to longitudinal waves, where the oscillations are parallel to the direction of wave propagation.
**4. Electromagnetic waves do not need a material medium to travel:**
- Unlike mechanical waves, such as sound waves or water waves, electromagnetic waves do not require a material medium to propagate.
- The oscillating electric and magnetic fields that make up electromagnetic waves can exist and propagate through empty space.
- This is because electromagnetic waves are a result of the interaction between electric and magnetic fields, which can exist independently of matter.
In conclusion, electromagnetic waves carry energy and momentum, are transverse in nature while traveling in a vacuum, and do not require a material medium to propagate. These characteristics make electromagnetic waves unique and versatile in their applications, ranging from radio waves and microwaves to visible light, X-rays, and gamma rays.
**1. Electromagnetic waves carry energy:**
- Electromagnetic waves are a form of energy that is propagated through space via oscillating electric and magnetic fields.
- The energy carried by electromagnetic waves is proportional to their frequency and inversely proportional to their wavelength. Higher frequency waves carry more energy.
**2. Electromagnetic waves carry momentum:**
- According to the theory of electromagnetism, electromagnetic waves consist of oscillating electric and magnetic fields that propagate through space.
- These oscillating fields exert a force on charged particles, causing them to experience a change in momentum.
- Therefore, electromagnetic waves carry momentum.
**3. Electromagnetic waves are transverse in nature while traveling in a vacuum:**
- Electromagnetic waves are characterized by the oscillation of electric and magnetic fields perpendicular to the direction of wave propagation.
- In a vacuum (or in free space), electromagnetic waves travel as transverse waves, where the oscillations of the electric and magnetic fields are perpendicular to the direction of wave propagation.
- This is in contrast to longitudinal waves, where the oscillations are parallel to the direction of wave propagation.
**4. Electromagnetic waves do not need a material medium to travel:**
- Unlike mechanical waves, such as sound waves or water waves, electromagnetic waves do not require a material medium to propagate.
- The oscillating electric and magnetic fields that make up electromagnetic waves can exist and propagate through empty space.
- This is because electromagnetic waves are a result of the interaction between electric and magnetic fields, which can exist independently of matter.
In conclusion, electromagnetic waves carry energy and momentum, are transverse in nature while traveling in a vacuum, and do not require a material medium to propagate. These characteristics make electromagnetic waves unique and versatile in their applications, ranging from radio waves and microwaves to visible light, X-rays, and gamma rays.
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Electromagnetic waves _______.a)carry energyb)carry momentumc)are tran...
Options no. - (d) is correct options .
An electromagnetic wave can travel through anything - be it air, a solid material or vacuum. It does not need a medium to propagate or travel from one place to another.
An electromagnetic wave can travel through anything - be it air, a solid material or vacuum. It does not need a medium to propagate or travel from one place to another.
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Electromagnetic waves _______.a)carry energyb)carry momentumc)are transverse in nature while travelling in vacuumd)do not need a material medium to travelCorrect answer is option 'A,B,C,D'. Can you explain this answer?
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