Practice question
Question
What is the gravitational potential due to Earth at a distance of 1.6×107m from its center? ( ME\=6×1024kg,G\=6.67×10−11Nm2/kg2)
Explanation
U = −GMEr. U = −6.67×10−11×6×10241.6×107. U = −2.5×107J/kg. As per NCERT, applying relevant law/formula with correct units and sign convention leads to -2.5 × 10⁷ J/kg. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.
Related blogs
Guides and insights connected to this topic
Earth as a System: Energy Matter and Life Notes - Geosphere, Hydrosphere, Atmosphere, Biosphere and Greenhouse Effect
Explore how the Sun, Earth's interior heat and chemical reactions drive energy and matter through the geosphere, hydrosphere, atmosphere and biosphere.
Electricity Notes - Electric Current, Potential, Ohm's Law, Resistance, Heating Effect and Power
Learn the basics of electric current, circuits, potential, Ohm's law, resistance, heating effect and power in clear, concise notes.
Structural Organisation in Animals Biology Notes - Animal Tissues, Cockroach, Earthworm and Frog Morphology and Anatomy
Quick biology notes on structural organisation in animals. Learn epithelial, connective, muscular, and neural tissues, plus animal anatomy.
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.