NEET Physics: Gravitation — MCQ Test 7

Q6. What is the gravitational force on a \( 8 \, \text{kg} \) mass \( 5 \, \text{m} \) from the center of a spherical shell of mass \( 400 \, \text{kg} \) and radius \( 3 \, \text{m} \)? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q7. A projectile is launched at \( 2 \, \text{km/s} \) from Earth’s surface. What is its maximum distance from the center? (Escape speed = \( 11.2 \, \text{km/s}, R_E = 6.4 \times 10^6 \, \text{m} \))

Q8. A \( 9 \, \text{kg} \) mass is moved from \( 9 R_E \) to \( 18 R_E \) from Earth’s center. What is the change in potential energy? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q9. At what depth below Earth’s surface is \( g \) reduced to \( 8.33 \, \text{m/s}^2 \)? (\( g_0 = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m} \))

Q10. Why does Newton’s law of gravitation apply universally to all objects?

NEET Physics — Gravitation

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A satellite orbits a planet at \( 6 \times 10^7 \, \text{m} \) from its center with a period of 15 hours. What is the planet’s mass? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

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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, Projectile, Launched, Distance, Gravitational, and Decrease.

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 orbits a planet at \( 6 \times 10^7 \, \text{m} \) from its center with a period of 15 hours. What is the planet’s mass? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

  • A. 4.2 × 10²⁵ kg
  • B. 4.3 × 10²⁵ kg
  • C. 4.4 × 10²⁵ kg
  • D. 4.5 × 10²⁵ kg

Q2. A projectile is launched at \( 7 \, \text{km/s} \) from Earth’s surface. What is its maximum distance from the center? (Escape speed = \( 11.2 \, \text{km/s}, R_E = 6.4 \times 10^6 \, \text{m} \))

  • A. 1.0 × 10⁷ m
  • B. 1.1 × 10⁷ m
  • C. 1.2 × 10⁷ m
  • D. 1.3 × 10⁷ m

Q3. What is the escape speed from a planet with mass \( 3 \times 10^{24} \, \text{kg} \) and radius \( 4 \times 10^6 \, \text{m} \)? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

  • A. 8 km/s
  • B. 10 km/s
  • C. 12 km/s
  • D. 14 km/s

Q4. Why does the gravitational force on a body inside Earth decrease linearly with depth?

  • A. Due to Earth’s rotation
  • B. Due to decreasing contributing mass
  • C. Due to atmospheric pressure
  • D. Due to the shell theorem

Q5. Which of the following statements is incorrect about Kepler’s second law?

  • A. It implies angular momentum conservation
  • B. Planets move at constant speed
  • C. Area swept is constant over time
  • D. It applies to elliptical orbits

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