Assertion (A): When a function f(t) is represented as exponential Fourier series, the set of complex coefficients F_n is called frequency spectrum of f(t)

Reason (R): Frequency spectrum is also called line spectrum.

Assertion (A): For a physically realisable driving point function, the degree of numerator and denominator should be equal.

Reason (R): The sum of positive real functions is real.

Assertion (A): In C a character constant is either a single alphabet or digit or special symbol enclosed within single inverted commas.

Reason (R): In C the maximum length of a character constant can be 2 characters.

Assertion (A): For same drain current rating N-channel MOSFET occupies more area than p-channel MOSFET.

Reason (R): Electron mobility is much higher than hole mobility.

Assertion (A): Atomic number of sodium is 11.

Reason (R): Sodium has a body centred cubic lattice.