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The magnetic field amplitude of an electromagnetic wave is 2×10^−7 T. Its’ electric field amplitude if the wave is traveling in free space is The magnetic field amplitude of an electromagnetic wave is 2×10^−7 T. Its' electric field amplitude if the wave is traveling in free space is June 9, 2021 Category: Cengage NEET by [...]

An electromagnetic wave in vacuum has the electric and magnetic field E→ and B→, which are always perpendicular to each other. The direction of polarization is given by X→ and that of wave propagation by k→ . Then An electromagnetic wave in vacuum has the electric and magnetic field E→ and B→ which are always [...]

An electromagnetic wave going through vacuum is described by E=E0sin(kx−ωt) Which of the following is/are independent of the wavelength? An electromagnetic wave going through vacuum is described by E=E0sin(kx−ωt) Which of the following is/are independent of the wavelength? June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 10 - Electromagnetic Waves , Part [...]

The energy contained in a small volume through which an electromagnetic wave is passing oscillates with. The energy contained in a small volume through which an electromagnetic wave is passing oscillates with. June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 10 - Electromagnetic Waves , Part 2 ,

An electromagnetic wave going through vacuum is described by E=E0sin(kx−ωt);B=B0sin(kx−ωt). Then An electromagnetic wave going through vacuum is described by E=E0sin(kx−ωt);B=B0sin(kx−ωt). Then June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 10 - Electromagnetic Waves , Part 2 ,

The radius of hydrogen atom in its ground state is 5.3×10^−11m. After collision with an electron it is found to have a radius of 21.2×10^−11m. The principal quantum number of the final state of the atom is. In terms of Rydberg's constant R the wave number of the first Balmer line is June 9, 2021 [...]

A photon of energy 10.2 eV corresponds to light of wavelength λ0. Due to an electron transition from n=2 to n=1 in a hydrogen atom, light of wavelength λ is emitted. If we take into account the recoil of the atom when the photon is emitted. A photon of energy 10.2 eV corresponds to light [...]

An electron with kinetic energy =E eV collides with a hydrogen atom in the ground state. The collision will be elastic An electron with kinetic energy =E eV collides with a hydrogen atom in the ground state. The collision will be elastic June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - [...]

An electron with kinetic energy 5eV is incident on a hydrogen atom in its ground state. The collision An electron with kinetic energy 5eV is incident on a hydrogen atom in its ground state. The collision June 9, 2021 Category: Cengage NEET by C.P Singh , Chapter 15 - Properties of Matter ,

A beam of ultraviolet light of all wavelength passes through hydrogen gas at room temperature, in the x-direction. Assume that all photons emitted due to electron transitions inside the gas emerge in the y-direction. Let A and B denote the lights emerging from the gas in the x-and y-directions respectively. A beam of ultraviolet light [...]