What defines the core-mantle boundary? - Internal Structure of The Earth (General Studies) Solved Question

Solved UPSC CDS/OTA Question

A solved UPSC CDS/OTA PYQ - decoded step-by-step.

Solve it the standard way once - then learn the shortcut.

Q · Internal Structure of The Earthmedium · 45s

What defines the core-mantle boundary?

TopicInternal Structure of The Earth

Question Typemultiple choice

Difficultymedium

Marking+1 / −0.33

Test Duration30 min

← Previous questionQ 50 / 60Next question →

Step-by-Step Solution

The complete worked solution.

Every step explained - no skipped algebra.

The core-mantle boundary is the Gutenberg discontinuity, where seismic wave behavior changes drastically due to phase changes between mantle and core.

Final Answer: Option B - Gutenberg discontinuity

Internal Structure of The Earth: What defines the core-mantle boundary?

A solved UPSC CDS/OTA PYQ - decoded step-by-step.

The complete worked solution.

More Internal Structure of The Earth questions - same topic, different frame.