Questions

Fill in the blanks.

🎯

Test yourself on this topic

14 questions · timed · auto-graded

Question 11 Mark
Quantum condition of angular momentum of electron according to Bohr's proposal is __________ .
Answer
$m v r=\frac{n h}{2 \pi}$.
View full question & answer
Question 21 Mark
The required minimizes energy for electron of atom, to make force from lowest level is __________ .
Answer
13.6 eV
View full question & answer
Question 51 Mark
Required energy given to atom for excited state from its ground state is called __________ .
Answer
Excitation energy
View full question & answer
Question 61 Mark
According to Bohr electron can revolves only around those orbits, for which angular momentum is multiple integer of __________ .
Answer
$\frac{h}{2 \pi}$
View full question & answer
Question 81 Mark
According to Rutherford, in the nuclei of different metals __________ values are different.
Answer
Positive charges
View full question & answer
Question 101 Mark
The positively charged part of the atom possesses most of the mass in _________ (Rutherford's model/both the models.)
Answer
both the models.
View full question & answer
Question 111 Mark
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.)
Answer
Thomson's model, Rutherford's model
View full question & answer
Question 121 Mark
A classical atom based on __________ is doomed to collapse. (Thomson's model/Rutherford's model.)
Answer
Rutherford's model
View full question & answer
Question 131 Mark
In the ground state of __________ electrons are in stable equilibrium, while in __________ electrons always experience a net force. (Thomson's model/Rutherford's model.)
Answer
Thomson's model, Rutherford's model
View full question & answer
Question 141 Mark
The size of the atom in Thomson's model the __________ the atomic size in Rutherford's model. (much greater than/no different from/much less than.)
Answer
no different from.
View full question & answer
Fill in the blanks. - Physics STD 12 Science Questions - Vidyadip