PGTRB Chemistry-Unit 4a (in Tamil)

PG TRB Chemistry Unit 4
Black Body Radiation - Failure of Classical Mechanics, Photoelectric Effect, Bohr's Theory, Matter Waves,
Quantum Mechanics - Postulates

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Very useful thank you.

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[@dhanabalramasamy2429]

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Do you have the prepared materials for each unit? If yes kindly let me how do we collect?
Also need previous TRB exam questions with answers explanation if you have.
Thank you

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