Advertisements
Advertisements
प्रश्न
Which of the following is true about the value of refractive index of quartz glass?
विकल्प
Same in all directions
Different in different directions
Cannot be measured
Always zero
Advertisements
उत्तर
Same in all directions.
Explanation:
Since quartz glass is an amorphous solid having short range order of constitutents. Hence, value of refractive index is same in all directions, can be measured and not be equal to zero always.
APPEARS IN
संबंधित प्रश्न
The relation a ≠ b ≠ c and α ≠ β ≠ γ represents which crystal system?
(A) Orthorhombic
(B) Tetragonal
(C) Triclinic
(D) Monoclinic
Why do solids have a definite volume?
Classify the following as amorphous or crystalline solids:
Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.
Refractive index of a solid is observed to have the same value along all directions. Comment on the nature of this solid. Would it show cleavage property?
What makes a glass different from a solid such as quartz? Under what conditions could quartz be converted into glass?
Write any two differences between amorphous solids and crystalline solids
Amorphous solids are also known as ____________.
A crystalline solid ____________.
Which of the following is not a crystalline solid?
Which of the following statements about amorphous solids is incorrect?
Which of the following is an amorphous solid?
Amorphous solids are ______.
Amorphous solid can also be called:
(i) pseudo solids
(ii) true solids
(iii) supercooled liquids
(iv) supercooled solids
Under which situations can an amorphous substance change to crystalline form?
The property of crystalline solid is not ______.
Assertion A: Sharp glass edge becomes smooth on heating it upto its melting point.
Reason R: The viscosity of glass decreases on melting.
Choose the most appropriate answer from the options given below.
