RQ of which diet is less than unity ?

Respiratory quotient of which diet is less than unity ?

Is it possible that (i) relative refractive index of the medium or (ii) absolute refractive index of the medium is less than unity ?

Prove that the equation x 2^x= 1 has at least one positive root which is less than unity.

RQ is less than one for

RQ is less than one for

RQ is less than one for

RQ is less than one for

Can the absolute value of refractive index of a medium be less than unity ?