Physics
When cathode rays strike a metal target of high melting point with a very high velocity then which of the following are produced?
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Nov
When cathode rays strike a metal target of high melting point with a very high velocity then which of the following are produced? When cathode rays strike a metal target of high melting point with a very high velocity then which of the following are produced? November 28, 2020 Category: AIIMS Last 24 Years Solved [...]
When hydrogen atom is in its first excited level, its radius, is
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Nov
When hydrogen atom is in its first excited level, its radius, is is its radius When hydrogen atom is in its first excited level November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 30 - Atoms , Physics ,
In Bohr’s model, the atomic radius of the first orbit is r0 . The radius of the third orbit, is
28
Nov
In Bohr’s model, the atomic radius of the first orbit is r0 . The radius of the third orbit, is In Bohr's model is the atomic radius of the first orbit is r0 . The radius of the third orbit November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry [...]
During the production of X–rays, if voltage is increased then the
28
Nov
During the production of X–rays, if voltage is increased then the During the production of X–rays if voltage is increased then the November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 30 - Atoms , Physics ,
If voltage across an X-ray tube is doubled, then energy of X-rays emitted by this tube would
28
Nov
If voltage across an X-ray tube is doubled, then energy of X-rays emitted by this tube would If voltage across an X-ray tube is doubled then energy of X-rays emitted by this tube would November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 30 - [...]
An X-ray beam of wavelength 10^-10 m falls on a crystal of atomic spacing 2 × 10^-10 m. The Bragg angle for the second order reflection will be
28
Nov
An X-ray beam of wavelength 10^-10 m falls on a crystal of atomic spacing 2 × 10^-10 m. The Bragg angle for the second order reflection will be An X-ray beam of wavelength 10^-10 m falls on a crystal of atomic spacing 2 × 10^-10 m. The Bragg angle for the second order reflection will [...]
The shortest wavelength of X-rays emitted from an X-ray tube depends upon
28
Nov
The shortest wavelength of X-rays emitted from an X-ray tube depends upon The shortest wavelength of X-rays emitted from an X-ray tube depends upon November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 30 - Atoms , Physics ,
In Bohr model of hydrogen atom, which of the following is quantised ?
28
Nov
In Bohr model of hydrogen atom, which of the following is quantised ? In bohr model of hydrogen atom which of the following is quantised ? November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 30 - Atoms , Physics ,
When light of wavelength λ is incident on photosensitive surface, the stopping potential is V. When light of wavelength 3λ is incident on same surface, the stopping potential is V6. Threshold wavelength for the surface is
28
Nov
When light of wavelength λ is incident on photosensitive surface, the stopping potential is V. When light of wavelength 3λ is incident on same surface, the stopping potential is V6. Threshold wavelength for the surface is the stopping potential is V. When light of wavelength 3λ is incident on same surface the stopping potential is [...]
The energy flux of sunlight reaching the surface of the earth is 1.388×10^3 Wm^−2. How many photons (nearly) per square metre are incident on the earth per second ? Assume that the photons in the sunlight have an average wavelength of 550 nm.
28
Nov
The energy flux of sunlight reaching the surface of the earth is 1.388×10^3 Wm^−2. How many photons (nearly) per square metre are incident on the earth per second ? Assume that the photons in the sunlight have an average wavelength of 550 nm. What is the energy of photon whose wavelength is 6840 Å ? [...]