NEET Physics: Atoms and Nuclei — MCQ Test 13

Q6. What is the key requirement for nuclei to undergo fusion?

Q7. Why is the mass of a nucleus less than the sum of its constituent nucleons?

Q8. What is the energy equivalent of \( 0.25 \, \text{g} \) of matter in Joules? (Given \( c = 3 \times 10^8 \, \text{m/s} \))

Q9. What is the approximate mass number of a nucleus with radius \( 4.2 \times 10^{-15} \, \text{m} \)? (Given \( R_0 = 1.2 \times 10^{-15} \, \text{m} \))

Q10. What is the radius of a nucleus with mass number 4? (Given \( R_0 = 1.2 \times 10^{-15} \, \text{m} \))

NEET Physics — Atoms and Nuclei

Free MCQ Test 13 of 22

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Calculate the nuclear density of a nucleus if its mass is 1.67×10−27 kg1.67 \times 10^{-27} \, \text{kg} and radius is 1.2×10−15 m1.2 \times 10^{-15} \, \text{m}. (Use π=3.14\pi = 3.14)

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Atoms and Nuclei. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Calculate, Approximate, Statement, Describes, Distances, and Advantage.

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Preview of Questions in this Test

Q1.

Calculate the nuclear density of a nucleus if its mass is 1.67×10−27 kg1.67 \times 10^{-27} \, \text{kg} and radius is 1.2×10−15 m1.2 \times 10^{-15} \, \text{m}. (Use π=3.14\pi = 3.14)

  • A.

    1.67 × 10¹⁷ kg/m³

  • B.

    2.31 × 10¹⁷ kg/m³

  • C.

    3.14 × 10¹⁷ kg/m³

  • D.

    4.50 × 10¹⁷ kg/m³

Q2.

What is the approximate mass number of a nucleus with radius 3.3×10−15 m3.3 \times 10^{-15} \, \text{m}? (Given R0=1.2×10−15 mR_0 = 1.2 \times 10^{-15} \, \text{m})

  • A.

    16

  • B.

    20

  • C.

    21

  • D.

    27

Q3.

Which statement best describes the nuclear force at distances greater than 0.8 fm?

  • A.

    It is repulsive

  • B.

    It becomes zero

  • C.

    It is charge-dependent

  • D.

    It is attractive

Q4.

What is the mass defect of a nucleus with binding energy 70 MeV70 \, \text{MeV}? (Given 1 u=931.5 MeV/c21 \, \text{u} = 931.5 \, \text{MeV/c}^2)

  • A.

    0.05 u

  • B.

    0.06 u

  • C.

    0.08 u

  • D.

    0.075 u

Q5.

What is the primary advantage of controlled thermonuclear fusion as an energy source?

  • A.

    Low temperature requirement

  • B.

    High nuclear density

  • C.

    Ease of confinement

  • D.

    Nearly unlimited energy

+ 5 more questions in the actual test

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