1

JEE Advanced 2020 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-2

A particle of mass m moves in circular orbits with potential energy V(r) = Fr, where F is a positive
constant and r is its distance from the origin. Its energies are calculated using the Bohr model. If the
radius of the particle’s orbit is denoted by R and its speed and energy are denoted by v and E,
respectively, then for the n

^{th}orbit (here h is the Planck’s constant)2

JEE Advanced 2019 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-1

A free hydrogen atom after absorbing a photon of wavelength $$\lambda $$

_{a}gets excited from the state n = 1 to the state n = 4. Immediately after that the electron jumps to n = m state by emitting a photon of wavelength $$\lambda $$_{e}. Let the change in momentum of atom due to the absorption and the emission be $$\Delta {p_a}$$ and $$\Delta {p_e}$$, respectively. If $${{{\lambda _a}} \over {{\lambda _e}}} = {1 \over 5}$$, which of the option(s) is/are correct? [Use hc = 1242 eVnm; 1 nm = 10^{-9}m, h and c are Planck's constant and speed of light in vacuum, respectively]3

JEE Advanced 2018 Paper 2 Offline

MCQ (More than One Correct Answer)

+4

-1

In a radioactive decay chain, $${}_{90}^{232}Th$$ nucleus decays to $${}_{82}^{212}Pb$$ nucleus. Let $${N_\alpha }$$ and $${N_\beta }$$ be the number of $$\alpha $$ and $${\beta ^ - }$$ particles, respectively, emitted in this decay process. Which of the following statements is (are) true?

4

JEE Advanced 2016 Paper 1 Offline

MCQ (More than One Correct Answer)

+4

-2

Highly excited states for hydrogen-like atoms (also called Rydberg states) with nuclear charge Ze are defined by their principle quantum number n, where n >> 1. Which of the following statement(s) is(are) true?

Questions Asked from Atoms and Nuclei (MCQ (Multiple Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

JEE Advanced 2022 Paper 1 Online (1)
JEE Advanced 2020 Paper 2 Offline (1)
JEE Advanced 2020 Paper 1 Offline (1)
JEE Advanced 2019 Paper 2 Offline (1)
JEE Advanced 2018 Paper 2 Offline (1)
JEE Advanced 2016 Paper 1 Offline (1)
JEE Advanced 2015 Paper 2 Offline (1)
JEE Advanced 2013 Paper 2 Offline (1)
IIT-JEE 2008 Paper 1 Offline (1)

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