∆x ∆Px ≥ h
∆x ∆Px = 0
∆x ∆Px < h
∆x ∆Px = ∞
Correct answer is A
No explanation has been provided for this answer.
A gas would serve as an electrical conductor under
reduced pressure and high current
increased magnetic field
reduced pressure and reduced potential
exposure to visible light
Correct answer is A
In general, gases conduct electricity under reduced pressure and high voltage/potential.
But from Ohms Law, current is directly proportional to voltage. Thus high current presupposes high voltage.
9.0 x 10-13J
9.0 x 10-12J
9.0 x 10-11J
9.0 x 10-10J
Correct answer is A
In thermonuclear reactions,
Energy = ∆mC2
∆m = Change in Mass
C = Speed of light
∴ 5.02 x 10-27 - 5.01 x 10-27 x [3 x 108]2
0.01 x 10-27 x 9 x 1016
E = 9.0 x 10-13J
in a pure semiconductor, the number of electrons in the conduction band is
less than the number of holes in the valence band
equal to the number of holes in the valence band
greater than the number of holes in the valence band
twice the number of holes in the valence band
Correct answer is B
No explanation has been provided for this answer.
Compound microscope
Galileo's telescope
Terrestrial telescope
Astronomical telescope
Correct answer is D
No explanation has been provided for this answer.