AIIMS Last 24 Years Solved 1996 – 2019 Physics and Chemistry Video Solutions
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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 ? [...]
The potential difference V required for accelerating an electron to have the de Broglie wavelength of 1Å is
28
Nov
The potential difference V required for accelerating an electron to have the de Broglie wavelength of 1Å is The potential difference V required for accelerating an electron to have the de Broglie wavelength of 1Å is November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter [...]
The maximum velocities of the photo- electrons ejected are v and 2v for the incident light of wavelength 400 nm and 250 nm on a metal surface respectively. The work function of the metal in terms of Planck’s constant h and velocity of light c is
28
Nov
The maximum velocities of the photo- electrons ejected are v and 2v for the incident light of wavelength 400 nm and 250 nm on a metal surface respectively. The work function of the metal in terms of Planck’s constant h and velocity of light c is What is the energy of photon whose wavelength is [...]
Assertion : As work function of a material increases by some mechanism, it requires greater energy to excite the electrons from its surface. Reason : A plot of stopping potential (Vs) versus frequency (υ) for different metals, has greater slope for metals with greater work functions.
28
Nov
Assertion : As work function of a material increases by some mechanism, it requires greater energy to excite the electrons from its surface. Reason : A plot of stopping potential (Vs) versus frequency (υ) for different metals, has greater slope for metals with greater work functions. Assertion : As work function of a material increases [...]
Assertion: On increasing the frequency of light larger number of photoelectrons are emitted. Reason : The number of electrons emitted is directly proportional to the intensity of incident light.
28
Nov
Assertion: On increasing the frequency of light larger number of photoelectrons are emitted. Reason : The number of electrons emitted is directly proportional to the intensity of incident light. Assertion: On increasing the frequency of light larger number of photoelectrons are emitted. Reason : The number of electrons emitted is directly proportional to the intensity [...]