142061
Which of the following does not support the wave nature of light?
1 Interference
2 Diffraction
3 Polarisation
4 Photoelectric effect
Explanation:
D Photoelectric effect doesn' support the wave nature of light. When a photon is incident on the metal surface then electron is emitted from the surface this phenomenon is known as photoelectric effect.
VITEEE-2017
Dual nature of radiation and Matter
142067
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out :
1 the light intensity gets reduced with no change in its colour
2 light colour changes first to yellow and then red with no change in intensity
3 it stops working suddenly while giving white light
4 colour changes to red and also intensity gets reduced
Explanation:
D As batteries wear out, temperature of filament of flash light attains lesser value, therefore intensity of radiation reduces. Also dominating wavelength in spectrum, which is the red colour, increases.
UPSEE - 2006
Dual nature of radiation and Matter
142072
For photoelectric emission, tungsten requires light of $2300 \AA$. If light of $1800 \AA$ wavelength is incident, then emission
1 Takes place
2 Doesn't take place
3 May or may not take place
4 Depends on frequency
Explanation:
A In tungsten, photoemission take place with a light of wavelength $2300 \AA$. As emission of electron is inversely proportional to wavelength, all the wavelengths smaller than $2300 \AA$ will cause emission of electrons.
JCECE-2014
Dual nature of radiation and Matter
142074
Quantum nature can prove:
1 interference
2 photoelectric effect
3 diffraction
4 polarisation
Explanation:
B The emission of free electrons from a metal surface when the light is shown on it is called the photoelectric effect. This effect led to the conclusion that light is made up of packets or quantum of energy.
142061
Which of the following does not support the wave nature of light?
1 Interference
2 Diffraction
3 Polarisation
4 Photoelectric effect
Explanation:
D Photoelectric effect doesn' support the wave nature of light. When a photon is incident on the metal surface then electron is emitted from the surface this phenomenon is known as photoelectric effect.
VITEEE-2017
Dual nature of radiation and Matter
142067
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out :
1 the light intensity gets reduced with no change in its colour
2 light colour changes first to yellow and then red with no change in intensity
3 it stops working suddenly while giving white light
4 colour changes to red and also intensity gets reduced
Explanation:
D As batteries wear out, temperature of filament of flash light attains lesser value, therefore intensity of radiation reduces. Also dominating wavelength in spectrum, which is the red colour, increases.
UPSEE - 2006
Dual nature of radiation and Matter
142072
For photoelectric emission, tungsten requires light of $2300 \AA$. If light of $1800 \AA$ wavelength is incident, then emission
1 Takes place
2 Doesn't take place
3 May or may not take place
4 Depends on frequency
Explanation:
A In tungsten, photoemission take place with a light of wavelength $2300 \AA$. As emission of electron is inversely proportional to wavelength, all the wavelengths smaller than $2300 \AA$ will cause emission of electrons.
JCECE-2014
Dual nature of radiation and Matter
142074
Quantum nature can prove:
1 interference
2 photoelectric effect
3 diffraction
4 polarisation
Explanation:
B The emission of free electrons from a metal surface when the light is shown on it is called the photoelectric effect. This effect led to the conclusion that light is made up of packets or quantum of energy.
142061
Which of the following does not support the wave nature of light?
1 Interference
2 Diffraction
3 Polarisation
4 Photoelectric effect
Explanation:
D Photoelectric effect doesn' support the wave nature of light. When a photon is incident on the metal surface then electron is emitted from the surface this phenomenon is known as photoelectric effect.
VITEEE-2017
Dual nature of radiation and Matter
142067
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out :
1 the light intensity gets reduced with no change in its colour
2 light colour changes first to yellow and then red with no change in intensity
3 it stops working suddenly while giving white light
4 colour changes to red and also intensity gets reduced
Explanation:
D As batteries wear out, temperature of filament of flash light attains lesser value, therefore intensity of radiation reduces. Also dominating wavelength in spectrum, which is the red colour, increases.
UPSEE - 2006
Dual nature of radiation and Matter
142072
For photoelectric emission, tungsten requires light of $2300 \AA$. If light of $1800 \AA$ wavelength is incident, then emission
1 Takes place
2 Doesn't take place
3 May or may not take place
4 Depends on frequency
Explanation:
A In tungsten, photoemission take place with a light of wavelength $2300 \AA$. As emission of electron is inversely proportional to wavelength, all the wavelengths smaller than $2300 \AA$ will cause emission of electrons.
JCECE-2014
Dual nature of radiation and Matter
142074
Quantum nature can prove:
1 interference
2 photoelectric effect
3 diffraction
4 polarisation
Explanation:
B The emission of free electrons from a metal surface when the light is shown on it is called the photoelectric effect. This effect led to the conclusion that light is made up of packets or quantum of energy.
142061
Which of the following does not support the wave nature of light?
1 Interference
2 Diffraction
3 Polarisation
4 Photoelectric effect
Explanation:
D Photoelectric effect doesn' support the wave nature of light. When a photon is incident on the metal surface then electron is emitted from the surface this phenomenon is known as photoelectric effect.
VITEEE-2017
Dual nature of radiation and Matter
142067
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out :
1 the light intensity gets reduced with no change in its colour
2 light colour changes first to yellow and then red with no change in intensity
3 it stops working suddenly while giving white light
4 colour changes to red and also intensity gets reduced
Explanation:
D As batteries wear out, temperature of filament of flash light attains lesser value, therefore intensity of radiation reduces. Also dominating wavelength in spectrum, which is the red colour, increases.
UPSEE - 2006
Dual nature of radiation and Matter
142072
For photoelectric emission, tungsten requires light of $2300 \AA$. If light of $1800 \AA$ wavelength is incident, then emission
1 Takes place
2 Doesn't take place
3 May or may not take place
4 Depends on frequency
Explanation:
A In tungsten, photoemission take place with a light of wavelength $2300 \AA$. As emission of electron is inversely proportional to wavelength, all the wavelengths smaller than $2300 \AA$ will cause emission of electrons.
JCECE-2014
Dual nature of radiation and Matter
142074
Quantum nature can prove:
1 interference
2 photoelectric effect
3 diffraction
4 polarisation
Explanation:
B The emission of free electrons from a metal surface when the light is shown on it is called the photoelectric effect. This effect led to the conclusion that light is made up of packets or quantum of energy.
