The potential energy in an elastic string of force constant k, which has an extension X is?
kX
KX2
½KX2
½K
Correct answer is C
elastic potential energy[Ee] = 12ke2.
increases non-linearly with measuring temperature
increases linearly with increasing temperature
decreases linearly with increasing temperature
decreases non-linearly ith measuring temperature
Correct answer is A
The vapor pressure of any substance increases non-linearly with temperature, often described by the Clausius–Clapeyron relation.
As the temperature of a liquid or solid increases its vapor pressure also increases.
Conversely, vapor pressure decreases as the temperature decreases.
i.e. vapor pressure is directly proportional to temperature
For a pear-shaped conductor shown above, the concentration of charge on the outside is highest at?
X
Z
Y
K
Correct answer is A
The electric field at the surface of the conductor is perpendicular to the surface.
Charge accumulates, and the field is strongest, on pointy parts of the conductor.
According to kinetic molecular model in gases,
the particles are closely packed together; they occupy minimum space are usually arranged in a regular pattern
the particles vibrate about fixed positions and are held together by the strong intermolecular bonds between them
the molecules are very far apart and occupy all the spaces made available to them
the particles occur in clusters with molecules slightly further apart
Correct answer is C
The model, called the kinetic theory of gases, assumes that the molecules are very small relative to the distance between molecules.
The molecules are in constant, random motion and frequently collide with each other and with the walls of any container.
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