2023 AQA AS PHYSICS 7407/2 Paper 2 Question //AQA AS Level Physics – Combined QUESTIONS AND ANSWERS Nucleon Number - CORRECT ANSWAlso known as the mass number, total number of nucleons in the nucleus Isotope - CORRECT ANSW-Atoms with the same number

2023 AQA AS PHYSICS 7407/2 Paper 2 Question //AQA AS Level Physics – Combined QUESTIONS AND ANSWERS Nucleon Number - CORRECT ANSWAlso known as the mass number, total number of nucleons in the nucleus Isotope - CORRECT ANSW-Atoms with the same number of protons but different numbers of neutrons Strong Nuclear Force - CORRECT ANSW-The force which holds the nucleus together 3fm - CORRECT ANSW-The distance at which the maximum attractive value of the strong nuclear force rapidly falls towards zero Alpha Emission - CORRECT ANSW-Emission due to very large atoms, such as uranium, as the nuclei are too big for the strong nuclear force to hold them together Beta Emission - CORRECT ANSW-Emission due to neutron rich isotopes, so one neutron is changed into a proton Critical Angle - CORRECT ANSW-The angle of incidence of a light ray which it must exceed for total internal reflection to occur. Multipath dispersion - CORRECT ANSW-The lengthening of a light pulse as it travels along an optical fibre, because of the different distances that light rays travel when they are totally internally reflected many times. Young's fringes - CORRECT ANSW-Parallel bright and dark fringes observed when light from a narrow slit passes through two closely placed slits