As one considers orbits with higher values of n in a hydrogen atom, the electric potential energy of the atom
(a) decreases
(b) increases
(c) remains the same
(d) does not increase.
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The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
The potential energy of freely falling object decreases and its kinetic energy increases (as its velocity increases) progressively. So, in this way the total mechanical energy (Kinetic energy + potential...
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The potential energy of a free falling object decreases progressively. Does this violate the law of conservation of energy? Why?
Decrease in P.E. = Increase in K.E. So there is no loss in the energy by the object. There is only the transformation of the energy.
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Companies with a higher growth potential are likely to (a) pay lower dividends (b) pay higher dividends
(a) Companies which have higher growth potential are likely to pay lower dividends. This is because the companies having higher growth potential have greater investment plans and require larger funds for...
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Higher working capital usually results in (a) higher current ratio, higher risk and higher profits
(a) Working capital of a firm refers to the amount of current assets which are in excess over current liabilities. If a company has a higher working capital then there will...
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The magnitude of gravitational potential energy of the moon-earth system is U with zero potential energy at infinite separation.
(b ) U>K. EXPLANATION: Let the mass of the moon = m, velocity v and its distance from the earth = a. v = √(GM/a), K.E. = K = ½mv² = ½m*GM/a →GMm/a = 2K The...
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If a positive charge is shifted from a low-potential region to a high-potential region, the electric potential energy (a) increases
(a) increases
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The electric potential decreases uniformly from 120V to 80V as one moves on the X-axis from x = - 1cm to x = +1cm.
The correct answer is (b) (c) (b) may be equal to 20V/cm (c) may be greater than 20V/cm
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Although the H-bonding in hydrogen fluoride is much stronger than that in water, yet water has a much higher boiling point than hydrogen fluoride.
This is because hydrogen bonding is multidimensional in water whereas in HF it is linear.
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A neutron having kinetic energy 12.5 eV collides with a hydrogen atom at rest. Nelgect the difference in mass between the neutron and the hydrogen
In one dimensional elastic collision of two bodies of equal masses. The initial velocities of bodies are interchanged after collision. Velocity of the neutron after collision is zero. Hence, it has zero energy.
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In an atom there are four orbits, the maximum number of electrons in this atom will be -
(B) The maximum number of electrons is 36.
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