https://drive.google.com/file/d/1jl7VYsKkUwbTQxdtADoVOzxZg7l9EzjQ/view?usp=drivesdk

PREPARED BY
RAJENDRAN  M,  M.Sc., B.Ed., C.C.A.,
P. G. ASSISTANT IN PHYSICS,
DEPARTMENT OF PHYSICS,
SRM HIGHER SECONDARY SCHOOL,
KAVERIYAMPOONDI,
THIRUVANNAMALAI DISTRICT.

 

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