Fill in the blanks:
Physical propertie of amorphous solids are identical in..............directions and therefore they are of.......nature.(all,some,isotrpoic,anisotropic).

Fill in the blanks: If the physical properties of a solid do not depend on the direction,the solid is known as........(isotropic,anisotropic).

Fill in the blanks: Majority of hte solids in nature have ........internal stucture (ordered ,disordered).

Fill in the blanks: The polycrystalline solids show.....properties,while the monocrystals have ....... properties (isotropic ,anistropic)

Solid which do not show the same physical properties in different directions are called:

Raman and Rajan were studying the properties of solids. A solid 'X' showed same physical properties (thermal conductivity and refractive index) in all directions while another solid 'Y' showed differrent physical properties in different directions. Raman classified the solid 'X' as crystalline and solid 'Y' as amorphous. Rajan did not agree with Raman's classification. Answer the following questions What is the natme of the property exhibited by solid 'X'?

Raman and Rajan were studying the properties of solids. A solid 'X' showed same physical properties (thermal conductivity and refractive index) in all directions while another solid 'Y' showed differrent physical properties in different directions. Raman classified the solid 'X' as crystalline and solid 'Y' as amorphous. Rajan did not agree with Raman's classification. Answer the following questions Whom do you favour, Raman or Rajan and why?

Fill in the blanks in the following statements:- Changes in which only ________ properties of a substance change are called physical changes.

Fill ups If electrical conductivity is found to be same in all directions through a solid, the substance is ……………..and this property is called……….. .

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?