357567
Assertion :
An electron microscope can achieve better resolving power than an optical microscope.
Reason :
The de-Broglie wavelength of the electrons emitted from an electron gun with velocity \(5 \times {10^5}\;m{\rm{/}}s\) is much less than \(500\,nm.\)
357568
Which of the following statements are true?
I.
In the interaction with matter, radiation behaves as if it is made up of particles called photons.
II.
Each photon has energy \(E=h v\) and momentum \(p=h v / c\)
III.
Photons are electrically neutral and are not deflected by electric and magnetic fields.
IV.
In a photon-particle collision, photon number is conserved
357569 \(\lambda_{1}\) and \(\lambda_{2}\) are used to illuminate the slits. \(\beta_{1}\) and \(\beta_{2}\) are the corresponding fringe widths. The wavelength \(\lambda_{1}\) can produce photoelectric effect when incident on a metal. But the wavelength \(\lambda_{2}\) cannot produce photoelectric effect. The correct relation between \(\beta_{1}\) and \(\beta_{2}\) is
357570
An \(X\)-ray pulse of wavelength \(4.9\,\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) is sent through a section of Wilson cloud chamber containing a super saturated gas and tracks of photoelectron ejected from the gaseous atoms are observed. Two groups of tracks of lengths \(1.40\;cm\) and \(2.02\;cm\) are noted. If the range energy relation for cloud chamber is given by \(R=\alpha E\) with \(\alpha = 1\,cmke{V^{ - 1}}\), obtain the binding energies of the two levels from which electrons are emitted.
(Take, \(h = 6.63 \times {10^{ - 34}}\;J - s\),
\(1eV = 1.6 \times {10^{ - 19}}\;J\))
357567
Assertion :
An electron microscope can achieve better resolving power than an optical microscope.
Reason :
The de-Broglie wavelength of the electrons emitted from an electron gun with velocity \(5 \times {10^5}\;m{\rm{/}}s\) is much less than \(500\,nm.\)
357568
Which of the following statements are true?
I.
In the interaction with matter, radiation behaves as if it is made up of particles called photons.
II.
Each photon has energy \(E=h v\) and momentum \(p=h v / c\)
III.
Photons are electrically neutral and are not deflected by electric and magnetic fields.
IV.
In a photon-particle collision, photon number is conserved
357569 \(\lambda_{1}\) and \(\lambda_{2}\) are used to illuminate the slits. \(\beta_{1}\) and \(\beta_{2}\) are the corresponding fringe widths. The wavelength \(\lambda_{1}\) can produce photoelectric effect when incident on a metal. But the wavelength \(\lambda_{2}\) cannot produce photoelectric effect. The correct relation between \(\beta_{1}\) and \(\beta_{2}\) is
357570
An \(X\)-ray pulse of wavelength \(4.9\,\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) is sent through a section of Wilson cloud chamber containing a super saturated gas and tracks of photoelectron ejected from the gaseous atoms are observed. Two groups of tracks of lengths \(1.40\;cm\) and \(2.02\;cm\) are noted. If the range energy relation for cloud chamber is given by \(R=\alpha E\) with \(\alpha = 1\,cmke{V^{ - 1}}\), obtain the binding energies of the two levels from which electrons are emitted.
(Take, \(h = 6.63 \times {10^{ - 34}}\;J - s\),
\(1eV = 1.6 \times {10^{ - 19}}\;J\))
357567
Assertion :
An electron microscope can achieve better resolving power than an optical microscope.
Reason :
The de-Broglie wavelength of the electrons emitted from an electron gun with velocity \(5 \times {10^5}\;m{\rm{/}}s\) is much less than \(500\,nm.\)
357568
Which of the following statements are true?
I.
In the interaction with matter, radiation behaves as if it is made up of particles called photons.
II.
Each photon has energy \(E=h v\) and momentum \(p=h v / c\)
III.
Photons are electrically neutral and are not deflected by electric and magnetic fields.
IV.
In a photon-particle collision, photon number is conserved
357569 \(\lambda_{1}\) and \(\lambda_{2}\) are used to illuminate the slits. \(\beta_{1}\) and \(\beta_{2}\) are the corresponding fringe widths. The wavelength \(\lambda_{1}\) can produce photoelectric effect when incident on a metal. But the wavelength \(\lambda_{2}\) cannot produce photoelectric effect. The correct relation between \(\beta_{1}\) and \(\beta_{2}\) is
357570
An \(X\)-ray pulse of wavelength \(4.9\,\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) is sent through a section of Wilson cloud chamber containing a super saturated gas and tracks of photoelectron ejected from the gaseous atoms are observed. Two groups of tracks of lengths \(1.40\;cm\) and \(2.02\;cm\) are noted. If the range energy relation for cloud chamber is given by \(R=\alpha E\) with \(\alpha = 1\,cmke{V^{ - 1}}\), obtain the binding energies of the two levels from which electrons are emitted.
(Take, \(h = 6.63 \times {10^{ - 34}}\;J - s\),
\(1eV = 1.6 \times {10^{ - 19}}\;J\))
357567
Assertion :
An electron microscope can achieve better resolving power than an optical microscope.
Reason :
The de-Broglie wavelength of the electrons emitted from an electron gun with velocity \(5 \times {10^5}\;m{\rm{/}}s\) is much less than \(500\,nm.\)
357568
Which of the following statements are true?
I.
In the interaction with matter, radiation behaves as if it is made up of particles called photons.
II.
Each photon has energy \(E=h v\) and momentum \(p=h v / c\)
III.
Photons are electrically neutral and are not deflected by electric and magnetic fields.
IV.
In a photon-particle collision, photon number is conserved
357569 \(\lambda_{1}\) and \(\lambda_{2}\) are used to illuminate the slits. \(\beta_{1}\) and \(\beta_{2}\) are the corresponding fringe widths. The wavelength \(\lambda_{1}\) can produce photoelectric effect when incident on a metal. But the wavelength \(\lambda_{2}\) cannot produce photoelectric effect. The correct relation between \(\beta_{1}\) and \(\beta_{2}\) is
357570
An \(X\)-ray pulse of wavelength \(4.9\,\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) is sent through a section of Wilson cloud chamber containing a super saturated gas and tracks of photoelectron ejected from the gaseous atoms are observed. Two groups of tracks of lengths \(1.40\;cm\) and \(2.02\;cm\) are noted. If the range energy relation for cloud chamber is given by \(R=\alpha E\) with \(\alpha = 1\,cmke{V^{ - 1}}\), obtain the binding energies of the two levels from which electrons are emitted.
(Take, \(h = 6.63 \times {10^{ - 34}}\;J - s\),
\(1eV = 1.6 \times {10^{ - 19}}\;J\))
357567
Assertion :
An electron microscope can achieve better resolving power than an optical microscope.
Reason :
The de-Broglie wavelength of the electrons emitted from an electron gun with velocity \(5 \times {10^5}\;m{\rm{/}}s\) is much less than \(500\,nm.\)
357568
Which of the following statements are true?
I.
In the interaction with matter, radiation behaves as if it is made up of particles called photons.
II.
Each photon has energy \(E=h v\) and momentum \(p=h v / c\)
III.
Photons are electrically neutral and are not deflected by electric and magnetic fields.
IV.
In a photon-particle collision, photon number is conserved
357569 \(\lambda_{1}\) and \(\lambda_{2}\) are used to illuminate the slits. \(\beta_{1}\) and \(\beta_{2}\) are the corresponding fringe widths. The wavelength \(\lambda_{1}\) can produce photoelectric effect when incident on a metal. But the wavelength \(\lambda_{2}\) cannot produce photoelectric effect. The correct relation between \(\beta_{1}\) and \(\beta_{2}\) is
357570
An \(X\)-ray pulse of wavelength \(4.9\,\mathop {{\rm{ }}A}\limits^{\;\;^\circ } \) is sent through a section of Wilson cloud chamber containing a super saturated gas and tracks of photoelectron ejected from the gaseous atoms are observed. Two groups of tracks of lengths \(1.40\;cm\) and \(2.02\;cm\) are noted. If the range energy relation for cloud chamber is given by \(R=\alpha E\) with \(\alpha = 1\,cmke{V^{ - 1}}\), obtain the binding energies of the two levels from which electrons are emitted.
(Take, \(h = 6.63 \times {10^{ - 34}}\;J - s\),
\(1eV = 1.6 \times {10^{ - 19}}\;J\))