NEET Physics: Gravitation — MCQ Test 5

Q6. A satellite orbits Earth at \( 9 R_E \) from the center. What is its orbital speed? (\( g = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m} \))

Q7. What is the gravitational force on a \( 9 \, \text{kg} \) mass \( 7 \, \text{m} \) from the center of a spherical shell of mass \( 350 \, \text{kg} \) and radius \( 5 \, \text{m} \)? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q8. What is the gravitational potential due to Earth at \( 3.2 \times 10^7 \, \text{m} \) from its center? (\( M_E = 6 \times 10^{24} \, \text{kg}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q9. Two masses \( 9 \, \text{kg} \) and \( 18 \, \text{kg} \) are \( 18 \, \text{m} \) apart. What is the gravitational potential at a point \( 8 \, \text{m} \) from the \( 9 \, \text{kg} \) mass? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q10. At what depth below Earth’s surface is \( g \) reduced to \( 7.35 \, \text{m/s}^2 \)? (\( g_0 = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m} \))

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A satellite near Earth has a period of 87 minutes. What is its period at \( h = 6 R_E \)? (\( R_E = 6.4 \times 10^6 \, \text{m} \))

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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 Gravitation. 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 Satellite, Gravitational, Potential, and Spherical.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A satellite near Earth has a period of 87 minutes. What is its period at \( h = 6 R_E \)? (\( R_E = 6.4 \times 10^6 \, \text{m} \))

  • A. 1590 min
  • B. 1600 min
  • C. 1610 min
  • D. 1620 min

Q2. What is the kinetic energy of a \( 600 \, \text{kg} \) satellite at \( 8 R_E \) from Earth’s center? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

  • A. 2.2 × 10⁹ J
  • B. 2.3 × 10⁹ J
  • C. 2.4 × 10⁹ J
  • D. 2.5 × 10⁹ J

Q3. A satellite’s period is 100 minutes at \( h = 0 \). What is its period at \( h = 2 R_E \)? (\( R_E = 6.4 \times 10^6 \, \text{m} \))

  • A. 500 min
  • B. 510 min
  • C. 520 min
  • D. 530 min

Q4. Why does the gravitational force act as if all mass is at the center for a uniform sphere?

  • A. Mass is concentrated at the center
  • B. Symmetry simplifies the force
  • C. Density varies radially
  • D. The sphere is hollow

Q5. Two masses \( 11 \, \text{kg} \) and \( 22 \, \text{kg} \) are \( 22 \, \text{m} \) apart. What is the gravitational potential at a point \( 10 \, \text{m} \) from the \( 11 \, \text{kg} \) mass? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

  • A. -1.9 × 10⁻¹⁰ J/kg
  • B. -2.0 × 10⁻¹⁰ J/kg
  • C. -2.1 × 10⁻¹⁰ J/kg
  • D. -2.2 × 10⁻¹⁰ J/kg

+ 5 more questions in the actual test

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