NEET Physics: Gravitation — MCQ Test 8

Q6. How much energy is required to move a \( 200 \, \text{kg} \) satellite from \( 6 R_E \) to \( 12 R_E \) from Earth’s center? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q7. A body weighs \( 392 \, \text{N} \) on Earth’s surface. What is its weight at a height \( h = R_E/6 \)? (\( g = 9.8 \, \text{m/s}^2 \))

Q8. How much energy is required to move a \( 400 \, \text{kg} \) satellite from \( 8 R_E \) to \( 16 R_E \) from Earth’s center? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q9. What is the gravitational potential due to Earth at \( 4.48 \times 10^7 \, \text{m} \) from its center? (\( M_E = 6 \times 10^{24} \, \text{kg}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q10. What is the gravitational force on a \( 5 \, \text{kg} \) mass \( 4 \, \text{m} \) from the center of a spherical shell of mass \( 200 \, \text{kg} \) and radius \( 3 \, \text{m} \)? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

NEET Physics — Gravitation

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At what depth below Earth’s surface is \( g \) reduced to \( 6.86 \, \text{m/s}^2 \)? (\( g_0 = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m} \))

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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 Equilateral, Triangle, Potential, Constant, Satellites, and Following.

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. At what depth below Earth’s surface is \( g \) reduced to \( 6.86 \, \text{m/s}^2 \)? (\( g_0 = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m} \))

  • A. 1.8 × 10⁶ m
  • B. 1.9 × 10⁶ m
  • C. 2.0 × 10⁶ m
  • D. 2.1 × 10⁶ m

Q2. Three \( 5 \, \text{kg} \) masses form an equilateral triangle of side \( 4 \, \text{m} \). What is the potential energy of the system? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

  • A. -1.2 × 10⁻¹⁰ J
  • B. -1.3 × 10⁻¹⁰ J
  • C. -1.4 × 10⁻¹⁰ J
  • D. -1.5 × 10⁻¹⁰ J

Q3. What does the constant \( k \) in Kepler’s third law (\( T^2 = k r^3 \)) depend on for satellites?

  • A. Mass of the satellite
  • B. Mass of the central body
  • C. Radius of the orbit
  • D. Speed of the satellite

Q4. Three masses of \( 6 \, \text{kg} \) each form an equilateral triangle with side \( 5 \, \text{m} \). What is the net force on one mass? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

  • A. 1.5 × 10⁻¹⁰ N
  • B. 1.6 × 10⁻¹⁰ N
  • C. 1.7 × 10⁻¹⁰ N
  • D. 1.8 × 10⁻¹⁰ N

Q5. Which of the following statements is correct about escape speed?

  • A. It increases with altitude
  • B. It depends on the object’s mass
  • C. It is zero at infinity
  • D. It decreases with altitude

+ 5 more questions in the actual test

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