FSC Class 12 Physics Chapter 9 Notes

The X-rays diffraction with crystal was first studied by: W.H Bragg Boher proposed his atomic model in: 1913 Disintegration of photon on striking a nucleus into an electron and positron is known as: Pair production The temperature of core of nuclear reactor is: 1200°C The 1st Bohr atom in the hydrogen atom has radius: 5.30 x … Read more

Class 12 Physics Chapter 10 Notes

Binding energy per nucleus for uranium is above: 7.7 Mev The first atomic reactor was introduced by: Enrico Fermi The radioactive decay obeys the law: B The energy of photon for photoelectric effect is less than: 5 MeV Both xenon and caesium each have: 36 isotopes Mass equivalent of 931 MeV energy is: 1.766 x … Read more

12th Class Physics Chapter 8 Notes

If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor: 1? The existence of positron was discovered in: 1928 When the K.E. of photoelectric is zero, the frequency of incident photon is: Equal to The numerical value of Compton wavelength is equal to: 2.43 x 10-12m The minimum … Read more

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