Particle Nature of Light
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357583 If the kinetic energy of an electron gets tripled then the de-Broglie wavelength associated with it changes by a factor:

1 \(1 / 3\)
2 \(\sqrt{3}\)
3 \(\dfrac{1}{\sqrt{3}}\)
4 3
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357584 Consider Sun is producing power \({P}\) in the form of monochromatic radiations of wavelength \({\lambda}\), and the distance between Sun and Earth is \({d}\) (\(d\,\, > > \) earth radius). Calculate the number of photon per cubic meter just above the earth surface

1 \({\dfrac{P \lambda}{4 \pi d^{2} h c^{2}}}\)
2 \({\dfrac{P \lambda}{\pi d^{2} h c}}\)
3 \({\dfrac{4 P \lambda}{h c^{2}}}\)
4 \({\dfrac{P \lambda}{h c^{2}}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357585 An electron of mass \(m\) when accelerated through a potential difference \(V\) has de Broglie wavelength \(\lambda\). The de - Broglie wavelength associated with a proton of mass \(M\) accelerated through the same potential difference will be.

1 \(\lambda \dfrac{m}{M}\)
2 \(\lambda \sqrt{\dfrac{m}{M}}\)
3 \(\lambda \dfrac{M}{m}\)
4 \(\lambda \sqrt{\dfrac{M}{m}}\)
AIIMS - 2010
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357586 Monochromatic light of frequency \(6.0 \times {10^{14}}\;Hz\) is produced by a laser. The power emitted is \(2 \times {10^{ - 3}}\;W\). The number of photons emitted, on the average, by the source per second is

1 \(5 \times 10^{16}\)
2 \(5 \times 10^{17}\)
3 \(5 \times 10^{14}\)
4 \(5 \times 10^{15}\)
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357583 If the kinetic energy of an electron gets tripled then the de-Broglie wavelength associated with it changes by a factor:

1 \(1 / 3\)
2 \(\sqrt{3}\)
3 \(\dfrac{1}{\sqrt{3}}\)
4 3
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357584 Consider Sun is producing power \({P}\) in the form of monochromatic radiations of wavelength \({\lambda}\), and the distance between Sun and Earth is \({d}\) (\(d\,\, > > \) earth radius). Calculate the number of photon per cubic meter just above the earth surface

1 \({\dfrac{P \lambda}{4 \pi d^{2} h c^{2}}}\)
2 \({\dfrac{P \lambda}{\pi d^{2} h c}}\)
3 \({\dfrac{4 P \lambda}{h c^{2}}}\)
4 \({\dfrac{P \lambda}{h c^{2}}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357585 An electron of mass \(m\) when accelerated through a potential difference \(V\) has de Broglie wavelength \(\lambda\). The de - Broglie wavelength associated with a proton of mass \(M\) accelerated through the same potential difference will be.

1 \(\lambda \dfrac{m}{M}\)
2 \(\lambda \sqrt{\dfrac{m}{M}}\)
3 \(\lambda \dfrac{M}{m}\)
4 \(\lambda \sqrt{\dfrac{M}{m}}\)
AIIMS - 2010
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357586 Monochromatic light of frequency \(6.0 \times {10^{14}}\;Hz\) is produced by a laser. The power emitted is \(2 \times {10^{ - 3}}\;W\). The number of photons emitted, on the average, by the source per second is

1 \(5 \times 10^{16}\)
2 \(5 \times 10^{17}\)
3 \(5 \times 10^{14}\)
4 \(5 \times 10^{15}\)
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PHXII11:DUAL NATURE OF RADIATION AND MATTER

357583 If the kinetic energy of an electron gets tripled then the de-Broglie wavelength associated with it changes by a factor:

1 \(1 / 3\)
2 \(\sqrt{3}\)
3 \(\dfrac{1}{\sqrt{3}}\)
4 3
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357584 Consider Sun is producing power \({P}\) in the form of monochromatic radiations of wavelength \({\lambda}\), and the distance between Sun and Earth is \({d}\) (\(d\,\, > > \) earth radius). Calculate the number of photon per cubic meter just above the earth surface

1 \({\dfrac{P \lambda}{4 \pi d^{2} h c^{2}}}\)
2 \({\dfrac{P \lambda}{\pi d^{2} h c}}\)
3 \({\dfrac{4 P \lambda}{h c^{2}}}\)
4 \({\dfrac{P \lambda}{h c^{2}}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357585 An electron of mass \(m\) when accelerated through a potential difference \(V\) has de Broglie wavelength \(\lambda\). The de - Broglie wavelength associated with a proton of mass \(M\) accelerated through the same potential difference will be.

1 \(\lambda \dfrac{m}{M}\)
2 \(\lambda \sqrt{\dfrac{m}{M}}\)
3 \(\lambda \dfrac{M}{m}\)
4 \(\lambda \sqrt{\dfrac{M}{m}}\)
AIIMS - 2010
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357586 Monochromatic light of frequency \(6.0 \times {10^{14}}\;Hz\) is produced by a laser. The power emitted is \(2 \times {10^{ - 3}}\;W\). The number of photons emitted, on the average, by the source per second is

1 \(5 \times 10^{16}\)
2 \(5 \times 10^{17}\)
3 \(5 \times 10^{14}\)
4 \(5 \times 10^{15}\)
For More Updates join with Us
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357583 If the kinetic energy of an electron gets tripled then the de-Broglie wavelength associated with it changes by a factor:

1 \(1 / 3\)
2 \(\sqrt{3}\)
3 \(\dfrac{1}{\sqrt{3}}\)
4 3
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357584 Consider Sun is producing power \({P}\) in the form of monochromatic radiations of wavelength \({\lambda}\), and the distance between Sun and Earth is \({d}\) (\(d\,\, > > \) earth radius). Calculate the number of photon per cubic meter just above the earth surface

1 \({\dfrac{P \lambda}{4 \pi d^{2} h c^{2}}}\)
2 \({\dfrac{P \lambda}{\pi d^{2} h c}}\)
3 \({\dfrac{4 P \lambda}{h c^{2}}}\)
4 \({\dfrac{P \lambda}{h c^{2}}}\)
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357585 An electron of mass \(m\) when accelerated through a potential difference \(V\) has de Broglie wavelength \(\lambda\). The de - Broglie wavelength associated with a proton of mass \(M\) accelerated through the same potential difference will be.

1 \(\lambda \dfrac{m}{M}\)
2 \(\lambda \sqrt{\dfrac{m}{M}}\)
3 \(\lambda \dfrac{M}{m}\)
4 \(\lambda \sqrt{\dfrac{M}{m}}\)
AIIMS - 2010
PHXII11:DUAL NATURE OF RADIATION AND MATTER

357586 Monochromatic light of frequency \(6.0 \times {10^{14}}\;Hz\) is produced by a laser. The power emitted is \(2 \times {10^{ - 3}}\;W\). The number of photons emitted, on the average, by the source per second is

1 \(5 \times 10^{16}\)
2 \(5 \times 10^{17}\)
3 \(5 \times 10^{14}\)
4 \(5 \times 10^{15}\)
NEET DIGITAL LIBRARY