JAC Class 11 Physics MCQ Chapter-7: Gravitation

1. Kepler’s First Law is known as-

  • Law of orbits
  • Law of areas
  • Law of periods
  • None of these.
Answer
Law of orbits

2. Kepler’s second law is known as-

  • Law of orbits
  • Law of periods
  • Law of areas
  • None of these.
Answer
Law of areas

3. Kepler’s Second Law is a consequence of-

  • Conservation of energy
  • Conservation of linear momentum
  • Conservation of angular momentum
  • Conservation of mass.
Answer
Conservation of angular momentum

4. Which of the following Kepler’s Law is known as Harmonic Law?

  • Second Law
  • First Law
  • Third Law
  • None of these.
Answer
Third Law

5. S. I. unit of “G’ is-

  • Nm⁻²Kg⁻²
  • NmKg⁻²
  • Nm⁻²Kg
  • Nm²Kg⁻²
Answer
Nm²Kg⁻²

6. Gravitational force depends on-

  • Electric charge
  • Mass
  • Electric Current
  • None of these
Answer
Mass

7. Dimensional formula of gravitational constant is-

  • [M⁻¹L³T⁻²]
  • [M³L³T⁻³]
  • [M³L³T³]
  • [LT⁻³]
Answer
[M⁻¹L³T⁻²]

8. The value of acceleration due to the gravity of the earth –

  • 98 m/s²
  • 0.98 m/s²
  • 9.8 m/s²
  • 0.098 m/s²
Answer
9.8 m/s²

9. Value of ‘g’ is-

  • maximum at poles
  • maximum at the equator
  • same everywhere
  • maximum at the center of the earth.
Answer
maximum at poles

10. If we go down from the earth’s surface, the value of acceleration due to gravity (g)-

  • decreases
  • remains constant
  • increases
  • None of these
Answer
decreases

11. The escape velocity does not depend upon-

  • mass of the body
  • height of the location from where it is projected
  • the density of the body
  • None of these.
Answer
mass of the body

12. The time period of a simple pendulum in a satellite is-

  • Same on the earth
  • Zero
  • Infinite
  • None of these
Answer
Infinite

13. The weight of a body at the center of the earth is-

  • Zero
  • Infinite
  • Same as on the surface of the earth
  • None of these
Answer
Zero

These JAC MCQs for class 11 Physics will help students prepare for the board exam. For more study materials, such as solutions, model papers, syllabus, MCQ Questions, and the latest updates on the JAC Board, please visit our website at JACBoardSolutions.com.

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