155694
In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?
1 Ultraviolet
2 Microwaves
3 infrared
4 Radio waves
Explanation:
B A molecular vibration is a periodic motion of the atoms of a molecule relative to each other. These vibrated molecules can be understood by the Kirchhoff's law spectroscopy. The molecular spectra due to the vibrational motion of the molecules will lie in the microwave region.
AIIMS-26.05.2018(E)
Electromagnetic Wave
155695
Given below is a list of electromagnetic spectrum and its mode of production. Which one does not match?
1 Gamma rays-Radioactive decay of the nucleus
2 Ultraviolet-Magnetron valve
3 Infra-red- Vibration of atoms and molecules
4 Radio wave -Rapid acceleration and deceleration of electrons in conducting wires
Explanation:
B Ultraviolet rays is not produced by magnetron valve.
COMEDK 2018
Electromagnetic Wave
155696
Which of the following are not electromagnetic waves?
1 Cosmic rays
2 Gamma-rays
3 $\beta$-rays
4 X-rays
Explanation:
C $\beta$-rays are emitted by radioactive elements and are not part of the electromagnetic spectrum. Hence, $\beta$ - rays is not electromagnetic waves. Cosmic rays, Gamma-rays and $\mathrm{X}$-rays are electromagnetic waves.
JCECE-2018
Electromagnetic Wave
155698
The speed of a body that has Mach number more than 1 is
1 supersonic
2 subsonic
3 $300 \mathrm{~m} / \mathrm{s}$
4 about $10 \mathrm{~m} / \mathrm{s}$
Explanation:
A Mach number is the ratio of the speed of a body to the speed of sound in the surrounding medium. When the object flow with greater velocity than the sound it is said to have supersonic velocity. It has a mach number greater than 1 .
NEET Test Series from KOTA - 10 Papers In MS WORD
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Electromagnetic Wave
155694
In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?
1 Ultraviolet
2 Microwaves
3 infrared
4 Radio waves
Explanation:
B A molecular vibration is a periodic motion of the atoms of a molecule relative to each other. These vibrated molecules can be understood by the Kirchhoff's law spectroscopy. The molecular spectra due to the vibrational motion of the molecules will lie in the microwave region.
AIIMS-26.05.2018(E)
Electromagnetic Wave
155695
Given below is a list of electromagnetic spectrum and its mode of production. Which one does not match?
1 Gamma rays-Radioactive decay of the nucleus
2 Ultraviolet-Magnetron valve
3 Infra-red- Vibration of atoms and molecules
4 Radio wave -Rapid acceleration and deceleration of electrons in conducting wires
Explanation:
B Ultraviolet rays is not produced by magnetron valve.
COMEDK 2018
Electromagnetic Wave
155696
Which of the following are not electromagnetic waves?
1 Cosmic rays
2 Gamma-rays
3 $\beta$-rays
4 X-rays
Explanation:
C $\beta$-rays are emitted by radioactive elements and are not part of the electromagnetic spectrum. Hence, $\beta$ - rays is not electromagnetic waves. Cosmic rays, Gamma-rays and $\mathrm{X}$-rays are electromagnetic waves.
JCECE-2018
Electromagnetic Wave
155698
The speed of a body that has Mach number more than 1 is
1 supersonic
2 subsonic
3 $300 \mathrm{~m} / \mathrm{s}$
4 about $10 \mathrm{~m} / \mathrm{s}$
Explanation:
A Mach number is the ratio of the speed of a body to the speed of sound in the surrounding medium. When the object flow with greater velocity than the sound it is said to have supersonic velocity. It has a mach number greater than 1 .
155694
In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?
1 Ultraviolet
2 Microwaves
3 infrared
4 Radio waves
Explanation:
B A molecular vibration is a periodic motion of the atoms of a molecule relative to each other. These vibrated molecules can be understood by the Kirchhoff's law spectroscopy. The molecular spectra due to the vibrational motion of the molecules will lie in the microwave region.
AIIMS-26.05.2018(E)
Electromagnetic Wave
155695
Given below is a list of electromagnetic spectrum and its mode of production. Which one does not match?
1 Gamma rays-Radioactive decay of the nucleus
2 Ultraviolet-Magnetron valve
3 Infra-red- Vibration of atoms and molecules
4 Radio wave -Rapid acceleration and deceleration of electrons in conducting wires
Explanation:
B Ultraviolet rays is not produced by magnetron valve.
COMEDK 2018
Electromagnetic Wave
155696
Which of the following are not electromagnetic waves?
1 Cosmic rays
2 Gamma-rays
3 $\beta$-rays
4 X-rays
Explanation:
C $\beta$-rays are emitted by radioactive elements and are not part of the electromagnetic spectrum. Hence, $\beta$ - rays is not electromagnetic waves. Cosmic rays, Gamma-rays and $\mathrm{X}$-rays are electromagnetic waves.
JCECE-2018
Electromagnetic Wave
155698
The speed of a body that has Mach number more than 1 is
1 supersonic
2 subsonic
3 $300 \mathrm{~m} / \mathrm{s}$
4 about $10 \mathrm{~m} / \mathrm{s}$
Explanation:
A Mach number is the ratio of the speed of a body to the speed of sound in the surrounding medium. When the object flow with greater velocity than the sound it is said to have supersonic velocity. It has a mach number greater than 1 .
155694
In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?
1 Ultraviolet
2 Microwaves
3 infrared
4 Radio waves
Explanation:
B A molecular vibration is a periodic motion of the atoms of a molecule relative to each other. These vibrated molecules can be understood by the Kirchhoff's law spectroscopy. The molecular spectra due to the vibrational motion of the molecules will lie in the microwave region.
AIIMS-26.05.2018(E)
Electromagnetic Wave
155695
Given below is a list of electromagnetic spectrum and its mode of production. Which one does not match?
1 Gamma rays-Radioactive decay of the nucleus
2 Ultraviolet-Magnetron valve
3 Infra-red- Vibration of atoms and molecules
4 Radio wave -Rapid acceleration and deceleration of electrons in conducting wires
Explanation:
B Ultraviolet rays is not produced by magnetron valve.
COMEDK 2018
Electromagnetic Wave
155696
Which of the following are not electromagnetic waves?
1 Cosmic rays
2 Gamma-rays
3 $\beta$-rays
4 X-rays
Explanation:
C $\beta$-rays are emitted by radioactive elements and are not part of the electromagnetic spectrum. Hence, $\beta$ - rays is not electromagnetic waves. Cosmic rays, Gamma-rays and $\mathrm{X}$-rays are electromagnetic waves.
JCECE-2018
Electromagnetic Wave
155698
The speed of a body that has Mach number more than 1 is
1 supersonic
2 subsonic
3 $300 \mathrm{~m} / \mathrm{s}$
4 about $10 \mathrm{~m} / \mathrm{s}$
Explanation:
A Mach number is the ratio of the speed of a body to the speed of sound in the surrounding medium. When the object flow with greater velocity than the sound it is said to have supersonic velocity. It has a mach number greater than 1 .