Particle Nature of Electromagnetic Radiation
CHXI02:STRUCTURE OF ATOM

307422 Assertion :
Black body is an ideal body that emits and absorbs radiations of all frequencies.
Reason :
The frequency of radiations emitted by a body goes from lower frequency to higher frequency with an increase in temperature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307423 The value of Planck’s constant is \({\rm{6}}{\rm{.63 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{Js}}\). The speed of light is \(3 \times {10^{17}}nm\,{s^{ - 1}}\). Which value is closest to the wavelength in nanometer of a quantum of light with frequency of \({\rm{6 \times 1}}{{\rm{0}}^{{\rm{15}}}}{{\rm{s}}^{{\rm{ - 1}}}}\)?

1 \({\rm{25}}\)
2 \({\rm{50}}\)
3 \({\rm{75}}\)
4 \({\rm{10}}\)
CHXI02:STRUCTURE OF ATOM

307424 H-atom is exposed to electromagnetic radiation of \({\rm{\lambda = 1025}}{\rm{.6}}\mathop {\rm{A}}\limits^{\rm{o}} \). What is the energy corresponding to this wavelength?

1 \({\rm{102}}{\rm{.6}}\,{\rm{ev}}\)
2 \({\rm{12}}{\rm{.09}}\,{\rm{ev}}\)
3 \({\rm{121}}.{\rm{6}}\,{\rm{ev}}\)
4 \({\rm{810}}{\rm{.8}}\,\,{\rm{eV}}\)
CHXI02:STRUCTURE OF ATOM

307425 Ratio of energy of a photon of wavelength 200 nm to that of 400 nm is

1 \(\frac{{\rm{1}}}{{\rm{4}}}\)
2 \({\rm{4}}\)
3 \(\frac{{\rm{1}}}{{\rm{2}}}\)
4 \({\rm{2}}\)
CHXI02:STRUCTURE OF ATOM

307422 Assertion :
Black body is an ideal body that emits and absorbs radiations of all frequencies.
Reason :
The frequency of radiations emitted by a body goes from lower frequency to higher frequency with an increase in temperature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307423 The value of Planck’s constant is \({\rm{6}}{\rm{.63 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{Js}}\). The speed of light is \(3 \times {10^{17}}nm\,{s^{ - 1}}\). Which value is closest to the wavelength in nanometer of a quantum of light with frequency of \({\rm{6 \times 1}}{{\rm{0}}^{{\rm{15}}}}{{\rm{s}}^{{\rm{ - 1}}}}\)?

1 \({\rm{25}}\)
2 \({\rm{50}}\)
3 \({\rm{75}}\)
4 \({\rm{10}}\)
CHXI02:STRUCTURE OF ATOM

307424 H-atom is exposed to electromagnetic radiation of \({\rm{\lambda = 1025}}{\rm{.6}}\mathop {\rm{A}}\limits^{\rm{o}} \). What is the energy corresponding to this wavelength?

1 \({\rm{102}}{\rm{.6}}\,{\rm{ev}}\)
2 \({\rm{12}}{\rm{.09}}\,{\rm{ev}}\)
3 \({\rm{121}}.{\rm{6}}\,{\rm{ev}}\)
4 \({\rm{810}}{\rm{.8}}\,\,{\rm{eV}}\)
CHXI02:STRUCTURE OF ATOM

307425 Ratio of energy of a photon of wavelength 200 nm to that of 400 nm is

1 \(\frac{{\rm{1}}}{{\rm{4}}}\)
2 \({\rm{4}}\)
3 \(\frac{{\rm{1}}}{{\rm{2}}}\)
4 \({\rm{2}}\)
CHXI02:STRUCTURE OF ATOM

307422 Assertion :
Black body is an ideal body that emits and absorbs radiations of all frequencies.
Reason :
The frequency of radiations emitted by a body goes from lower frequency to higher frequency with an increase in temperature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307423 The value of Planck’s constant is \({\rm{6}}{\rm{.63 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{Js}}\). The speed of light is \(3 \times {10^{17}}nm\,{s^{ - 1}}\). Which value is closest to the wavelength in nanometer of a quantum of light with frequency of \({\rm{6 \times 1}}{{\rm{0}}^{{\rm{15}}}}{{\rm{s}}^{{\rm{ - 1}}}}\)?

1 \({\rm{25}}\)
2 \({\rm{50}}\)
3 \({\rm{75}}\)
4 \({\rm{10}}\)
CHXI02:STRUCTURE OF ATOM

307424 H-atom is exposed to electromagnetic radiation of \({\rm{\lambda = 1025}}{\rm{.6}}\mathop {\rm{A}}\limits^{\rm{o}} \). What is the energy corresponding to this wavelength?

1 \({\rm{102}}{\rm{.6}}\,{\rm{ev}}\)
2 \({\rm{12}}{\rm{.09}}\,{\rm{ev}}\)
3 \({\rm{121}}.{\rm{6}}\,{\rm{ev}}\)
4 \({\rm{810}}{\rm{.8}}\,\,{\rm{eV}}\)
CHXI02:STRUCTURE OF ATOM

307425 Ratio of energy of a photon of wavelength 200 nm to that of 400 nm is

1 \(\frac{{\rm{1}}}{{\rm{4}}}\)
2 \({\rm{4}}\)
3 \(\frac{{\rm{1}}}{{\rm{2}}}\)
4 \({\rm{2}}\)
CHXI02:STRUCTURE OF ATOM

307422 Assertion :
Black body is an ideal body that emits and absorbs radiations of all frequencies.
Reason :
The frequency of radiations emitted by a body goes from lower frequency to higher frequency with an increase in temperature.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307423 The value of Planck’s constant is \({\rm{6}}{\rm{.63 \times 1}}{{\rm{0}}^{{\rm{ - 34}}}}{\rm{Js}}\). The speed of light is \(3 \times {10^{17}}nm\,{s^{ - 1}}\). Which value is closest to the wavelength in nanometer of a quantum of light with frequency of \({\rm{6 \times 1}}{{\rm{0}}^{{\rm{15}}}}{{\rm{s}}^{{\rm{ - 1}}}}\)?

1 \({\rm{25}}\)
2 \({\rm{50}}\)
3 \({\rm{75}}\)
4 \({\rm{10}}\)
CHXI02:STRUCTURE OF ATOM

307424 H-atom is exposed to electromagnetic radiation of \({\rm{\lambda = 1025}}{\rm{.6}}\mathop {\rm{A}}\limits^{\rm{o}} \). What is the energy corresponding to this wavelength?

1 \({\rm{102}}{\rm{.6}}\,{\rm{ev}}\)
2 \({\rm{12}}{\rm{.09}}\,{\rm{ev}}\)
3 \({\rm{121}}.{\rm{6}}\,{\rm{ev}}\)
4 \({\rm{810}}{\rm{.8}}\,\,{\rm{eV}}\)
CHXI02:STRUCTURE OF ATOM

307425 Ratio of energy of a photon of wavelength 200 nm to that of 400 nm is

1 \(\frac{{\rm{1}}}{{\rm{4}}}\)
2 \({\rm{4}}\)
3 \(\frac{{\rm{1}}}{{\rm{2}}}\)
4 \({\rm{2}}\)