155691
Which wave, or ray is produced due to decelerating or accelerating charged particles?
1 Microwaves
2 Ultraviolet rays
3 Infrared rays
4 X-rays
Explanation:
D X-Rays are generated, when electrons are accelerated under a potential difference and turned into electromagnetic radiation.
J and K CET-2018
Electromagnetic Wave
155720
$\gamma$-rays are detected by
1 point contact diodes
2 thermopiles
3 ionization chamber
4 photocells
5 bolometers
Explanation:
C $\gamma$ - rays are detected by ionization chamber.
Kerala CEE - 2016
Electromagnetic Wave
155692
Which one of the following statements about electromagnetic waves, sound waves and water waves is/are correct? * They exhibit reflection * They carry energy * They exert pressure * They can travel in vacuum Select the correct answer using the code given below:
1 1,2 and 3
2 2 and 4
3 1 and 3 only
4 1 only
Explanation:
A When a ray of light approaches a smooth polished surface and the light ray bounces back, it is called the reflection of light. This property can be seen in all types of waves. A wave always carries energy/transfers energy. When light/electromagnetic waves or mechanical waves falls on a surface then these exerts pressure on the surface. But sound waves cannot travel through a vacuum.
NDA (I) 2018
Electromagnetic Wave
155693
In electromagnetic waves travelling in vacuum
1 1,3
2 $1,3,4$
3 1, 2, 3, 4
4 $1,2,3$
Explanation:
D Electromagnetic waves is a wave in which electric field vector and magnetic field vector are perpendicular to each other and also they are in same phase. $\vec{E} \times \vec{B}$ always give the direction in which wave travel. The direction of $\vec{E} \times \vec{B}$ is also perpendicular to both $\overrightarrow{\mathrm{E}}$ and $\overrightarrow{\mathrm{B}}$.
155691
Which wave, or ray is produced due to decelerating or accelerating charged particles?
1 Microwaves
2 Ultraviolet rays
3 Infrared rays
4 X-rays
Explanation:
D X-Rays are generated, when electrons are accelerated under a potential difference and turned into electromagnetic radiation.
J and K CET-2018
Electromagnetic Wave
155720
$\gamma$-rays are detected by
1 point contact diodes
2 thermopiles
3 ionization chamber
4 photocells
5 bolometers
Explanation:
C $\gamma$ - rays are detected by ionization chamber.
Kerala CEE - 2016
Electromagnetic Wave
155692
Which one of the following statements about electromagnetic waves, sound waves and water waves is/are correct? * They exhibit reflection * They carry energy * They exert pressure * They can travel in vacuum Select the correct answer using the code given below:
1 1,2 and 3
2 2 and 4
3 1 and 3 only
4 1 only
Explanation:
A When a ray of light approaches a smooth polished surface and the light ray bounces back, it is called the reflection of light. This property can be seen in all types of waves. A wave always carries energy/transfers energy. When light/electromagnetic waves or mechanical waves falls on a surface then these exerts pressure on the surface. But sound waves cannot travel through a vacuum.
NDA (I) 2018
Electromagnetic Wave
155693
In electromagnetic waves travelling in vacuum
1 1,3
2 $1,3,4$
3 1, 2, 3, 4
4 $1,2,3$
Explanation:
D Electromagnetic waves is a wave in which electric field vector and magnetic field vector are perpendicular to each other and also they are in same phase. $\vec{E} \times \vec{B}$ always give the direction in which wave travel. The direction of $\vec{E} \times \vec{B}$ is also perpendicular to both $\overrightarrow{\mathrm{E}}$ and $\overrightarrow{\mathrm{B}}$.
155691
Which wave, or ray is produced due to decelerating or accelerating charged particles?
1 Microwaves
2 Ultraviolet rays
3 Infrared rays
4 X-rays
Explanation:
D X-Rays are generated, when electrons are accelerated under a potential difference and turned into electromagnetic radiation.
J and K CET-2018
Electromagnetic Wave
155720
$\gamma$-rays are detected by
1 point contact diodes
2 thermopiles
3 ionization chamber
4 photocells
5 bolometers
Explanation:
C $\gamma$ - rays are detected by ionization chamber.
Kerala CEE - 2016
Electromagnetic Wave
155692
Which one of the following statements about electromagnetic waves, sound waves and water waves is/are correct? * They exhibit reflection * They carry energy * They exert pressure * They can travel in vacuum Select the correct answer using the code given below:
1 1,2 and 3
2 2 and 4
3 1 and 3 only
4 1 only
Explanation:
A When a ray of light approaches a smooth polished surface and the light ray bounces back, it is called the reflection of light. This property can be seen in all types of waves. A wave always carries energy/transfers energy. When light/electromagnetic waves or mechanical waves falls on a surface then these exerts pressure on the surface. But sound waves cannot travel through a vacuum.
NDA (I) 2018
Electromagnetic Wave
155693
In electromagnetic waves travelling in vacuum
1 1,3
2 $1,3,4$
3 1, 2, 3, 4
4 $1,2,3$
Explanation:
D Electromagnetic waves is a wave in which electric field vector and magnetic field vector are perpendicular to each other and also they are in same phase. $\vec{E} \times \vec{B}$ always give the direction in which wave travel. The direction of $\vec{E} \times \vec{B}$ is also perpendicular to both $\overrightarrow{\mathrm{E}}$ and $\overrightarrow{\mathrm{B}}$.
155691
Which wave, or ray is produced due to decelerating or accelerating charged particles?
1 Microwaves
2 Ultraviolet rays
3 Infrared rays
4 X-rays
Explanation:
D X-Rays are generated, when electrons are accelerated under a potential difference and turned into electromagnetic radiation.
J and K CET-2018
Electromagnetic Wave
155720
$\gamma$-rays are detected by
1 point contact diodes
2 thermopiles
3 ionization chamber
4 photocells
5 bolometers
Explanation:
C $\gamma$ - rays are detected by ionization chamber.
Kerala CEE - 2016
Electromagnetic Wave
155692
Which one of the following statements about electromagnetic waves, sound waves and water waves is/are correct? * They exhibit reflection * They carry energy * They exert pressure * They can travel in vacuum Select the correct answer using the code given below:
1 1,2 and 3
2 2 and 4
3 1 and 3 only
4 1 only
Explanation:
A When a ray of light approaches a smooth polished surface and the light ray bounces back, it is called the reflection of light. This property can be seen in all types of waves. A wave always carries energy/transfers energy. When light/electromagnetic waves or mechanical waves falls on a surface then these exerts pressure on the surface. But sound waves cannot travel through a vacuum.
NDA (I) 2018
Electromagnetic Wave
155693
In electromagnetic waves travelling in vacuum
1 1,3
2 $1,3,4$
3 1, 2, 3, 4
4 $1,2,3$
Explanation:
D Electromagnetic waves is a wave in which electric field vector and magnetic field vector are perpendicular to each other and also they are in same phase. $\vec{E} \times \vec{B}$ always give the direction in which wave travel. The direction of $\vec{E} \times \vec{B}$ is also perpendicular to both $\overrightarrow{\mathrm{E}}$ and $\overrightarrow{\mathrm{B}}$.
