Angular Momentum

PHOTOEMISSION TO BE SLOWED DOWN BY ANGULAR MOMENTUM

Seik et al. took a tungsten diselenide (WSe2) surface and then exposed it to the ultrafast light pulse. The electron emission was different at times. This happened because of the centrifugal barrier (repulsive force) that is related to the electron angular momentum. The observed results were- Ø  Electrons having lower angular momentum gets released or … Continue reading “PHOTOEMISSION TO BE SLOWED DOWN BY ANGULAR MOMENTUM”

FEATURES & LIMITATIONS OF BOHR MODEL

In the field of atomic physics, Rutherford-Bohr model or Bohr diagram or simply Bohr model was given by Neils Bohr and Ernest Rutherford, in 1913. The model depicts the atom as a positively charged small nucleus which is surrounded by electrons travelling in circular orbits around the nucleus with electrostatic forces providing a source of attraction.

WHAT IS THE CONCEPT OF TORQUE?

We often see spinning balls, spinning of wheels which causes car to move, spinning of train’s wheels, and many more rotational motions. But what is it that causes this rotational motion? It is torque.

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