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the potential difference across a 4 ohm resistor is 20 volts assuming that all of the energy dissipated by this resistor is in the form of heat
the constant potential difference across a 2 ohm resistor is 20 volts how many watts of power are dissipated by this resistorans200 watts of power
name the female physicist who received the nobel prize in 1963 for her discovery concerning the shell structure of the nucleus ansmaria goeppert
who first theoretically predicted the existence of the positron a positively charged electron he received the nobel prize in physics in 1933
who shared the nobel prize in physics in 1909 with guglielmo marconi for his contribution to the development of wireless telegraphyanscarl ferdinand
which of the following scientists is responsible for the exclusion principle which states that two objects may not occupy the same space at the same
what is the name of the first american physicist to win two nobel prizesansjohn bardeen was the first american physicist who win two nobel
if the resultant force acting on a body of constant mass is zero the bodys momentum isa increasingb decreasingb always zerod constantansif the
in physics a radian per second is a unit of a angular displacementb angular velocityc angular accelerationd angular momentumansa radian per second is
a machine performs 8 joules of work in 2 seconds how much power is delivered by this machineansthe power is delivered by this machine is 4
which quantum number is not related with schrodinger equation 1 principal 2 azimuthal 3
the equation delta x deltap ge h 4pi shows1 de-broglie relation 2 heisenbergs uncertainty principle 3
a 40 kilogram girl climbs a vertical distance of 5 meters in twenty seconds at a constant velocity how much work has the girl doneans2000 joules or
the uncertainty in the position of a moving bullet of mass 10 gm is 10 -5m calculate the uncertainty in its velocity1 52 x 10-28
if the distance between two objects each of mass m is tripled the force of attraction between the two objects is a 12 the original forceb 13
the uncertainty in momentum of an electron is 1 x10 -5 kg- ms the uncertainty in its position will be h 662 x 10 -34 kg - m2 s1 105 x 10-
a helicopter is ascending vertically with a constant speed of 6 meters per second relative to the ground at the instant the helicopter is 60
the uncertainty principle and the concept of wave nature of matter was proposed by and respectively1 heisenberg de broglie2 de-broglie
a certain spring is known to obey hookes law if a force of 10 newtons stretches the spring 2 meters how far will a 30 newton force stretch the
uncertainty principle gave the concept of1 probability2 an orbital3physical meaning of psi the psi 4all the aboveans
a 10 kilogram body initially moving with a velocity of 10 meters per second makes a head-on collision with a 15 kilogram body initially at rest
if uncertainty in the position of an electron is zero the uncertainty in its momentum would be1 zero 2 lth 2 gamma 3
a block of metal which weighs 60 newtons in air and 40 newtons under water has a density in kilograms per meter cubed of a 1000b 3000c 5000d 7000ansa
simultaneous determination of exact position and momentum of an electron is1 possible2 impossible3 sometimes possible sometimes impossible4 none of
a box is initially at rest on a horizontal frictionless table if a force of 10 newtons acts on the box for 3 seconds what is the momentum of the box