Particle Nature of Light
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357592 What will be the number of photons emitted per second by a \(10\;W\) sodium vapour lamp assuming that \(90 \%\) of the consumed energy is converted into light? [Wavelength of sodium light is 590 \(\left. {nm,h = 6.63 \times {{10}^{ - 34}}\;J - s} \right]\)

1 \(0.267 \times 10^{19}\)
2 \(0.267 \times 10^{18}\)
3 \(0.267 \times 10^{17}\)
4 \(0.267 \times 10^{20}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357593 If a proton and electron have the same de-broglie wavelength then:

1 Kinetic energy of electron \( < \) Kinetic energy of proton.
2 Kinetic energy of electron= Kinetic energy of proton.
3 Momentum of electron \(>\) Momentum of proton.
4 Momentum of electron = Momentum of proton.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357594 The de-Broglie wavelength associated with a charged particle when it is accelerated through a potential difference of 150 volt is \(1 \mathop A^{~~\circ} \). what will be the de-Broglie wavelength associated with the same particle when it is accelerated through a potential difference of \(4500\,V\)?

1 \(\dfrac{1}{\sqrt{3}}\mathop A^{~~\circ} \)
2 \(\dfrac{1}{\sqrt{30}}\mathop A^{~~\circ} \)
3 \(\dfrac{1}{\sqrt{300}} \mathop A^{~~\circ} \)
4 \(\dfrac{1}{3} \mathop A^{~~\circ} \)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357595 The de Broglie wavelength of an electron having \(80\,eV\) of energy is nearly \(\left( {1\,eV = 1.6 \times {{10}^{ - 19}}\;J} \right.\), Mass of electron \( = 9 \times {10^{ - 31}}\;kg\), Plank's constant \( = 6.6 \times {10^{ - 34}}\left. {Js} \right)\) (nearly)

1 \(140 \mathop A^{~~\circ} \)
2 \(0.14 \mathop A^{~~\circ} \)
3 \(14 \mathop A^{~~\circ} \)
4 \(1.4 \mathop A^{~~\circ} \)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357592 What will be the number of photons emitted per second by a \(10\;W\) sodium vapour lamp assuming that \(90 \%\) of the consumed energy is converted into light? [Wavelength of sodium light is 590 \(\left. {nm,h = 6.63 \times {{10}^{ - 34}}\;J - s} \right]\)

1 \(0.267 \times 10^{19}\)
2 \(0.267 \times 10^{18}\)
3 \(0.267 \times 10^{17}\)
4 \(0.267 \times 10^{20}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357593 If a proton and electron have the same de-broglie wavelength then:

1 Kinetic energy of electron \( < \) Kinetic energy of proton.
2 Kinetic energy of electron= Kinetic energy of proton.
3 Momentum of electron \(>\) Momentum of proton.
4 Momentum of electron = Momentum of proton.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357594 The de-Broglie wavelength associated with a charged particle when it is accelerated through a potential difference of 150 volt is \(1 \mathop A^{~~\circ} \). what will be the de-Broglie wavelength associated with the same particle when it is accelerated through a potential difference of \(4500\,V\)?

1 \(\dfrac{1}{\sqrt{3}}\mathop A^{~~\circ} \)
2 \(\dfrac{1}{\sqrt{30}}\mathop A^{~~\circ} \)
3 \(\dfrac{1}{\sqrt{300}} \mathop A^{~~\circ} \)
4 \(\dfrac{1}{3} \mathop A^{~~\circ} \)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357595 The de Broglie wavelength of an electron having \(80\,eV\) of energy is nearly \(\left( {1\,eV = 1.6 \times {{10}^{ - 19}}\;J} \right.\), Mass of electron \( = 9 \times {10^{ - 31}}\;kg\), Plank's constant \( = 6.6 \times {10^{ - 34}}\left. {Js} \right)\) (nearly)

1 \(140 \mathop A^{~~\circ} \)
2 \(0.14 \mathop A^{~~\circ} \)
3 \(14 \mathop A^{~~\circ} \)
4 \(1.4 \mathop A^{~~\circ} \)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357592 What will be the number of photons emitted per second by a \(10\;W\) sodium vapour lamp assuming that \(90 \%\) of the consumed energy is converted into light? [Wavelength of sodium light is 590 \(\left. {nm,h = 6.63 \times {{10}^{ - 34}}\;J - s} \right]\)

1 \(0.267 \times 10^{19}\)
2 \(0.267 \times 10^{18}\)
3 \(0.267 \times 10^{17}\)
4 \(0.267 \times 10^{20}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357593 If a proton and electron have the same de-broglie wavelength then:

1 Kinetic energy of electron \( < \) Kinetic energy of proton.
2 Kinetic energy of electron= Kinetic energy of proton.
3 Momentum of electron \(>\) Momentum of proton.
4 Momentum of electron = Momentum of proton.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357594 The de-Broglie wavelength associated with a charged particle when it is accelerated through a potential difference of 150 volt is \(1 \mathop A^{~~\circ} \). what will be the de-Broglie wavelength associated with the same particle when it is accelerated through a potential difference of \(4500\,V\)?

1 \(\dfrac{1}{\sqrt{3}}\mathop A^{~~\circ} \)
2 \(\dfrac{1}{\sqrt{30}}\mathop A^{~~\circ} \)
3 \(\dfrac{1}{\sqrt{300}} \mathop A^{~~\circ} \)
4 \(\dfrac{1}{3} \mathop A^{~~\circ} \)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357595 The de Broglie wavelength of an electron having \(80\,eV\) of energy is nearly \(\left( {1\,eV = 1.6 \times {{10}^{ - 19}}\;J} \right.\), Mass of electron \( = 9 \times {10^{ - 31}}\;kg\), Plank's constant \( = 6.6 \times {10^{ - 34}}\left. {Js} \right)\) (nearly)

1 \(140 \mathop A^{~~\circ} \)
2 \(0.14 \mathop A^{~~\circ} \)
3 \(14 \mathop A^{~~\circ} \)
4 \(1.4 \mathop A^{~~\circ} \)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357592 What will be the number of photons emitted per second by a \(10\;W\) sodium vapour lamp assuming that \(90 \%\) of the consumed energy is converted into light? [Wavelength of sodium light is 590 \(\left. {nm,h = 6.63 \times {{10}^{ - 34}}\;J - s} \right]\)

1 \(0.267 \times 10^{19}\)
2 \(0.267 \times 10^{18}\)
3 \(0.267 \times 10^{17}\)
4 \(0.267 \times 10^{20}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357593 If a proton and electron have the same de-broglie wavelength then:

1 Kinetic energy of electron \( < \) Kinetic energy of proton.
2 Kinetic energy of electron= Kinetic energy of proton.
3 Momentum of electron \(>\) Momentum of proton.
4 Momentum of electron = Momentum of proton.
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357594 The de-Broglie wavelength associated with a charged particle when it is accelerated through a potential difference of 150 volt is \(1 \mathop A^{~~\circ} \). what will be the de-Broglie wavelength associated with the same particle when it is accelerated through a potential difference of \(4500\,V\)?

1 \(\dfrac{1}{\sqrt{3}}\mathop A^{~~\circ} \)
2 \(\dfrac{1}{\sqrt{30}}\mathop A^{~~\circ} \)
3 \(\dfrac{1}{\sqrt{300}} \mathop A^{~~\circ} \)
4 \(\dfrac{1}{3} \mathop A^{~~\circ} \)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357595 The de Broglie wavelength of an electron having \(80\,eV\) of energy is nearly \(\left( {1\,eV = 1.6 \times {{10}^{ - 19}}\;J} \right.\), Mass of electron \( = 9 \times {10^{ - 31}}\;kg\), Plank's constant \( = 6.6 \times {10^{ - 34}}\left. {Js} \right)\) (nearly)

1 \(140 \mathop A^{~~\circ} \)
2 \(0.14 \mathop A^{~~\circ} \)
3 \(14 \mathop A^{~~\circ} \)
4 \(1.4 \mathop A^{~~\circ} \)