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Ashok0210

Asked: April 27, 2021In: Class 12 Physics

Suppose you are given a chance to repeat the alpha-particle scattering experiment using a thin sheet of solid hydrogen in place of the gold foil. (Hydrogen is a solid at temperatures below 14 K.) What results do you expect?

Class 12 Physics CBSE and UP Board Atoms Chapter-12 Exercise 12.2 NCERT Solutions for Class 12 Physics Chapter 12 Question-2

Ashok0210

Asked: April 27, 2021In: Class 12 Physics

Choose the correct alternative from the clues given at the end of the each statement: (a) The size of the atom in Thomson’s model is ………. the atomic size in Rutherford’s model. (much greater than/no different from/much less than.) (b) In the ground state of ………. electrons are in stable equilibrium, while in ………. electrons always experience a net force. (Thomson’s model/ Rutherford’s model.) (c) A classical atom based on ………. is doomed to collapse. (Thomson’s model/ Rutherford’s model.) (d) An atom has a nearly continuous mass distribution in a ………. but has a highly non-uniform mass distribution in ………. (Thomson’s model/ Rutherford’s model.) (e) The positively charged part of the atom possesses most of the mass in ………. (Rutherford’s model/both the models.)

Class 12 Physics CBSE and UP Board Atoms Chapter-12 Exercise 12.1 NCERT Solutions for Class 12 Physics Chapter 12 Question-1