(A) : The index of refraction (n) for majority of substances is related to their relative permittivity (in_(r )) as n=sqrt(in_(r )) . (R) : The relative permeability (mu_(r )) is approximately 1 for majority substances.

(A) : The index of refraction (n) for majority of substances is relate

1.	(A) : The index of refraction (n) for majority of substances is related to their relative permittivity (in_(r )) as n=sqrt(in_(r )) . (R) : The relative permeability (mu_(r )) is approximately 1 for majority substances.
Answer» Both 'A' and 'R' are TRUE and 'R' is the CORRECT EXPLANATION of 'A'. Both 'A' and ’R' are true and 'R' is not the correct explanation of 'A A' is true and 'R' is FALSE 'A' is false and R' is true Answer :A

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(A) : The index of refraction (n) for majority of substances is related to their relative permittivity (in_(r )) as n=sqrt(in_(r )) . (R) : The relative permeability (mu_(r )) is approximately 1 for majority substances.

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