Atomic and Nuclear Physics Answers

In Rutherford's experiment if 2000 particles are deflected at angle of 60 degree then how many particles are deviated at 120 degree?

Calculate the velocity of electron ejected from a platinum surface when radiation of 200 nw falls on it . The work function of platinum is 5ev. (1ev = 1.6*10-19)

what is magnitude of total orbital, total spin and total angular momenta for the ground state 4f of vanadium.

A bus is moving at 10ms^-1 towards a traffic light.when the driver sees the light changed to red,the bus is at a distance of 20m.the reaction time of driver us 0.5s and the deceleration is 4.5ms^-2.with the brake fully applied,how far is the bus when stops?

list the possible sub shells for the n=6shell

What is the circuit which makes the matching

Calculate the minimum energy of a gama(γ) photon in MeV which can produce one electron-positron pair [rest mass of an electron is 9.1x10^(-31) kg].

large hydron collider is to detect what ??

define atom and write its component? how rathurford and bohr model helps us to get atomic structure?input quantum number in sequence?

A beam of C60 molecules (basically a molecule-sized ball that is 7.0 × 10^−10 m in diameter and has a mass of 1.2 × 10^−24 kg ) is directed at two small slits in a very thin metal sheet. The
molecules in the beam are travelling at 1 cm/s and the apparatus is in a vacuum. We would like to use this beam + slits to observe the wave properties of the molecules via diffraction.

a) What is the de Broglie wavelength of the molecules in the beam? (ANS: 5.5 x 10^-8 m)

b) Explain / calculate what size and spacing should be used for the slits in order to observe a
clear interference pattern on a screen 1 m away. (Hint: Depends on your assumptions.... but two slits, each 10 x 10^-6 m wide, spaced 55 x 10^-6 m apart would result in interference maxima 1 mm apart on the screen (which should be easily measurable).)