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PhysicsEasyMCQ2020 · 03 Sep Shift 2

Q3. Hydrogen ion and singly ionized helium atom are accelerated, from rest, through the same potential difference. The ratio of final speeds of hydrogen and helium ions is close to: (1) 1 : 2 (2) 10 : 7 (3) 2 : 1 (4) 5 : 7

What This Question Tests

This question tests the application of energy conservation in an electric field, specifically relating potential difference to kinetic energy gained by charged particles.

Concepts Tested

Conservation of energyWork done by electric fieldKinetic energy

Formulas Used

qV = (1/2)mv²

📚 NCERT Sections This Tests

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12.6 (a) Using the Bohr’s model calculate the speed of the electron in a hydrogen atom in the n = 1, 2, and 3 levels. (b) Calculate the orbital period in each of these levels.

📋 Question Details

Chapter: Electrostatics
Topic: Electric Potential Energy, Kinetic Energy
Year: 2020
Shift: 03 Sep Shift 2
Q Number: Q3
Type: MCQ
NCERT Ref: Class 12 Physics Ch 2: Electrostatic Potential and Capacitance

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