Number of fibres, each of 40 mm length and 0.16 tex fineness, in a tuft of 24 mg mass is

If the ratio of the linear densities (denier) of two circular fibers is 3, the corresponding ratio of their diameters, (rounded off to two decimal places), is

Techniques used for determination of orientation in fibres from amongst the followings are P Birefringence measurement Q Scanning electron microscopy R X-ray...