E-PolyLearning

1. Sharp spots shows characteristics of
a. non crystalline material
b. crystalline material
c. soft material
d. porous material
View Answer Report Discuss 50-50!
Answer: (b).crystalline material

2. Optical microscopy becomes difficult for fibre diameters approaching
a. 0.1 micrometer
b. 1 micrometer
c. 2 micrometer
d. 2.1 micrometer
View Answer Report Discuss 50-50!
Answer: (b).1 micrometer

3. From study of relative intensities of double pattern effects, estimate can be made of
a. degree of crystallinity
b. degree if crystallization
c. degree of scattering
d. degree of normality
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Answer: (a).degree of crystallinity

4. Scattering of fine beam helps in obtaining information about internal structure of
a. non polymer films
b. polymer films
c. bonding
d. covalent bonding
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Answer: (b).polymer films

5. Atomic and molecular spacing of fibre lies between
a. 0.1 to 0.5 nm
b. 0.5 to 1 nm
c. 0.6 to 0.8 nm
d. 0.5 to 0.9 nm
View Answer Report Discuss 50-50!
Answer: (a).0.1 to 0.5 nm

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