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Nuclei — JEE Main Physics MCQs with Solutions
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Sample questions with solutions
Q1 — medium · theory
We know velocity of electron in nth shell of 2m k e (Eph )2 ke Eph 1
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q2 — medium · theory
V eE t 1 11 R3
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q3 — medium · theory
In a hypothetical fission reaction 24-4. In a nuclear fission reaction of an isotope of
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q4 — medium · theory
(3) 24-2. (3) ANSWER KEY 24-4. (3) 24-5. (3)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q5 — medium · theory
(2) 23-2. (1) 23-4. (3) 24-5. (4)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q6 — medium · theory
(4) 22-2. (4) 24-3. (4) 22-4. (4) 22-5. (1)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q7 — medium · theory
(3) 20-2. (2) 22-3. (2) 20-4. (2) 24-6. 208
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q8 — medium · numerical
Z in LHS = 92 1
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q9 — medium · numerical
Energy released per Nuclei of H = . MeV A1/3
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q10 — medium · numerical
U 238 824 He 60–1 e 206 Pb 21-2. Energy of ray [E] = hv
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q11 — medium · numerical
V 4 R3 A = (50 × 1.00783 + 70 × 1.00867)
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q12 — medium · theory
m 3 R 32 62 94
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q13 — medium · theory
24-5.
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q14 — medium · theory
For a nucleus A X having mass number A 22-1. NUCLEAR PHYSICS
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q15 — medium · numerical
Z in RHS = 56 + 36 = 92 23-2. m
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q16 — medium · theory
82
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q17 — medium · theory
23-1.
A. Proton (2) Electron will be : [JEE-Main_300124_{S2}] ✓ Correct
B. Neutron (4) ������-radiations (1) 2cM (2) Mc2
C. 9.13 (2) 15.04 (C) Nuclear forces are spin dependent.
D. 7.62 (4) 25.6 (D) Nuclear forces are central and charge
Q18 — medium · theory
22-3. How many alpha and beta particles are
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q19 — medium · theory
You are given that Mass of 7 Li 7.0160 u, 24-8. NUCLEAR PHYSICS
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q20 — medium · numerical
A in RHS = 141 + 92 = 233 23-3. e > p >
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q21 — medium · numerical
The Q-value of a nuclear reaction and kinetic 21-1. NUCLEAR PHYSICS
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q22 — medium · theory
3 24-9.
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q23 — medium · theory
27 24-9. 4
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q24 — medium · theory
In each fusion reaction, 4 H nucleus are 23-4.
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q25 — medium · theory
x + p + b hv 1 hv 2 , hv 1 hv
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q26 — medium · theory
and atomic number Z emitted when Uranium 92U238 decays to lead
A. 6 alpha particles and 4 beta particles ✓ Correct
B. 4 alpha particles and 5 beta particles
C. 0.8 MeV (2) 275 MeV
D. C, D only (2) B, C, E only Which of the following figure represents the
Q27 — medium · theory
21-2.
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q28 — medium · theory
used. 24-5. r2 A2/3 1
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q29 — medium · numerical
Q = k + kb – kp 2M C 2MC2
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D
Q30 — medium · numerical
VS = hv – 32 32 MODERN PHYSICS
A. Option A ✓ Correct
B. Option B
C. Option C
D. Option D