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ENERGY LEVELS
The energy levels, measured in electron volts (e.v.) in which orbiting electrons exist comply with a law of physics which states that energy can be given to electrons only in discrete amounts (quanta) which means that there are energy values that an electron cannot acquire. From this it can be deducted that there is a forbidden energy gap between each of the allowed energy bands K to O.
The width of the forbidden energy gap between the top of the valence band and the bottom of the conduction band determine the electrical conducting properties of materials.
Resistance: Resistance is the opposition to the motion of electrons. This arises as a result of collision of moving electrons. The unit of resistance is "ohm" represented by
Q. Derive Schrodinger's time dependent wave equation. What is the physical significance of wave function used in this equation? Ans. Time Dependent Schrodinger's Eq
Calculate the top heat-loss coefficient for a solar collector with a single glass cover having the following specifications (neglect edge effects), also calculate the ambient air t
When you are talking about relative velocity of A with respect B then it''s like you are observing the motion of A while standing on B. That is, with respect to you, B is at rest.
a compreesed spring is used to send a cart around circular loop what is the friction
Positive rays are sometimes called as the canal waves. These were found by Goldstein. If the cathode of a discharged tube has holes in it and the pressure of the gas is around 10-3
A charge q of mass m starting from rest is allowed to move between two plates having a potential difference of V volt. Determine the final velocity of it? Repulsion is the sure
What are mass defect and binding energy? How is mass defect related to binding energy? Describe the term ‘decay constant' for a radioactive substance. Reduce the relation betwee
maxwillequation
A 15-kg child experiences an acceleration of 0.25 m/s2 as she is pulled 1.7 m horizontally across the floor by her sister. Calculate the change in the child's kinetic energy.
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