BITSAT SERIES Physics
Atoms And Nuclei
8 previous year questions.
Volume: 8 Ques
Yield: Medium
High-Yield Trend
1
2021 1
2019 2
2018 1
2017 1
2015 2
2011 Chapter Questions 8 MCQs
01
PYQ 2011
medium
physics ID: bitsat-2
An electron in a hydrogen-like atom is in an excited state. It has total energy of -3.4 eV. The kinetic energy and de-Broglie wavelength respectively are:
1
3.4 eV, 0.66 nm
2
-3.4 eV, 1.99 nm
3
2.8 eV, 2.38 nm
4
1.1 eV, 1.28 nm
02
PYQ 2011
medium
physics ID: bitsat-2
The energies of energy levels A, B and C are EA < EB < EC. If the radiations of wavelengths ₁, ₂, ₃ are emitted due to transitions C to B, B to A and C to A respectively, then which relation is correct?
1
₁ + ₂ = ₃
2
₃ = ₁ + ₂
3
₃ = (₁₂)/(₁+₂)
4
₃⁻¹ = ₁⁻¹ + ₂⁻¹
03
PYQ 2015
medium
physics ID: bitsat-2
A neutron moving with speed makes a head-on collision with a hydrogen atom in the ground state kept at rest. The minimum kinetic energy of the neutron for which inelastic collision takes place is:
1
2
3
4
04
PYQ 2017
medium
physics ID: bitsat-2
Hydrogen (H), deuterium (D), singly ionized helium (He⁺) and doubly ionized lithium (Li²+) all have one electron around the nucleus. Consider n=2 to n=1 transition. The wavelengths of emitted radiations are lambda₁, lambda₂, lambda₃ and lambda₄ respectively. Then approximately
1
2
3
4
lambda₁=lambda₂=2lambda₃=3√(2)lambda₄
05
PYQ 2018
medium
physics ID: bitsat-2
In an electron gun, the potential difference between the filament and plate is 3000V. What will be the velocity of electron emitting from the gun?
1
2
3
4
3.26×10⁷m/s
06
PYQ 2018
medium
physics ID: bitsat-2
The third line of Balmer series of an ion equivalent to hydrogen atom has wavelength 108.5 nm. The ground state energy of an electron of this ion will be:
1
3.4 eV
2
13.6 eV
3
54.4 eV
4
122.4 eV
07
PYQ 2019
medium
physics ID: bitsat-2
A neutron moving with speed v makes a head-on collision with a hydrogen atom in ground state kept at rest. The minimum kinetic energy of the neutron for which inelastic collision takes place is
1
2
3
4
16.8eV
08
PYQ 2021
medium
physics ID: bitsat-2
Hydrogen (H), deuterium (D), singly ionized helium (He⁺) and doubly ionized lithium (Li⁺+) all have one electron around the nucleus. Consider n = 2 to n = 1 transition. The wavelengths of emitted radiations are lambda₁, lambda₂, lambda₃ and lambda₄ respectively. Then approximately
1
lambda₁ = lambda₂ = 4lambda₃
2
4lambda₁ = 2lambda₂ = 2lambda₃ = lambda₄
3
lambda₁ = 2lambda₂ = 2lambda₃ = 3√(2)lambda₄
4
lambda₁ = lambda₂ = 2lambda₃ = 3√(2)lambda₄
About Atoms And Nuclei - BITSAT
Atoms And Nuclei is a vital chapter for BITSAT aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Atoms And Nuclei PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Atoms And Nuclei carry the most weight. Then, tackle the questions iteratively to solidify your understanding.