Elementary particles concepts
Write down any two elementary particles that have nearly infinite life time?
Expert
The two elementary particles that have nearly infinite life time are: Electron and proton.
What do you mean by the term geocentric? Briefly describe it.
Rydberg constant (Rydberg): The constant that governs the relationship of the spectral line features of an atom via the Rydberg formula. For hydrogen, it is around 1.097 x 107 m-1.
What do you mean by the term positron? Explain in short.
As shown in the figure below, a source at S is sending out a spherical wave: E1=(A×D/r) cos(wt-2πr/λ); where r is the distance to source
Tardon: A particle that has a positive real mass and travels at a speed very less than c in all inertial frames.
What do you mean by the term free fall acceleration? State its significance in brief?
In the radioactive dating we use half life to find out the age of a sample however not average life why? Describe.
What is the reason that heat causes matter to expand? Briefly explain it.
Loschmidt constant: Loschmidt number: NL: The total number of particles per unit volume of an ideal gas at standard pressure and temperature. It has the value of 2.687 19 x 1025 m-3.
Balmer series (J. Balmer; 1885): An equation that explains the emission spectrum of hydrogen whenever an electron is jumping to the next orbital; four of the lines are in visible spectrum, and the remainder (residue) are in the ultraviolet.
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