JEE Main Nuclei — practice questions
22 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice JEE Main Nuclei in the app →The radius of a nucleus with mass number $A = 64$ is approximately ($R_0 = 1.2$ fm):The mass defect $\Delta m = 0.5$ u of a nucleus corresponds to a binding energy of approximately:Among alpha, beta and gamma radiation, the most penetrating is:A radioactive sample's activity drops to $1/8$ of the initial value over $30$ years. Its half-life is:The atomic mass unit is defined as one twelfth of the mass of which atom?Atomic species of the same element that differ in mass are called:Nuclides with the same mass number A are called:Nuclides with the same neutron number but different atomic number are called:A proton or a neutron is referred to by which general term?The nucleus of the lightest hydrogen atom is called the:The difference between the mass of a nucleus and its constituents is called the:The density of a nucleus is described as being independent of which quantity?Different nuclei are compared to a drop of liquid having what property?The radius of a nucleus is smaller than the radius of an atom by a factor of about:In the flat middle region of the curve, the binding energy per nucleon is nearly:How many types of radioactive decay are said to occur in nature?In alpha decay, which nucleus is emitted?Half-life is the time taken for the decay of what fraction of the initial nuclei?Mean life is the time at which the number of nuclei falls to what fraction of its initial value?Why must the nuclear binding force be much stronger than the Coulomb force?A nucleus influencing only the nucleons close to it shows which property of the nuclear force?When fusion is achieved by raising the temperature enough to overcome Coulomb repulsion, it is called: