JEE Main 2022 (Online) 25th June Evening Shift | Atoms and Nuclei Question 109 | Physics

Which of the following figure represents the variation of $${l_n}\left( {{R \over {{R_0}}}} \right)$$ with $${l_n}A$$ (if R = radius of a nucleus and A = its mass number)

JEE Main 2022 (Online) 25th June Evening Shift Physics - Atoms and Nuclei Question 103 English Option 1

JEE Main 2022 (Online) 25th June Evening Shift Physics - Atoms and Nuclei Question 103 English Option 2

JEE Main 2022 (Online) 25th June Evening Shift Physics - Atoms and Nuclei Question 103 English Option 3

JEE Main 2022 (Online) 25th June Evening Shift Physics - Atoms and Nuclei Question 103 English Option 4

JEE Main 2022 (Online) 25th June Morning Shift

MCQ (Single Correct Answer)

-1

The ratio for the speed of the electron in the 3^rd orbit of He⁺ to the speed of the electron in the 3^rd orbit of hydrogen atom will be :

1 : 1

1 : 2

4 : 1

2 : 1

JEE Main 2022 (Online) 24th June Evening Shift

MCQ (Single Correct Answer)

-1

In Bohr's atomic model of hydrogen, let K, P and E are the kinetic energy, potential energy and total energy of the electron respectively. Choose the correct option when the electron undergoes transitions to a higher level :

All K, P and E increase.

K decreases, P and E increase.

P decreases, K and E increase.

K increases, P and E decrease.

JEE Main 2022 (Online) 24th June Morning Shift

MCQ (Single Correct Answer)

-1

Choose the correct option from the following options given below :

In the ground state of Rutherford's model electrons are in stable equilibrium. While in Thomson's model electrons always experience a net-force.

An atom has a nearly continuous mass distribution in a Rutherford's model but has a highly non-uniform mass distribution in Thomson's model.

A classical atom based on Rutherford's model is doomed to collapse.

The positively charged part of the atom possesses most of the mass in Rutherford's model but not in Thomson's model.