Home
Class 12
CHEMISTRY
Refractive index of a solid is observed ...

Refractive index of a solid is observed to have the same value along all directions . Comment on the nature of this solids . Would it show cleavage property ?

Text Solution

Verified by Experts

A solid has same value of refractive index along all directions is isotropic and hence amorphous in nature . It would not show a clean cleavage when cut with a knife . Instead , it would break into pieces with irregular surface .
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise LONG ANSWER QUESTIONS|8 Videos

  • POLYMERS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise INTEXT QUESTIONS|6 Videos

  • SOLUTIONS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise INTEXT QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. The correct order of radii is

A tank is filled with water to a height of 12.5 cm. The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 2.54 cm. What is the refractive index of water ? If water is replaced by a liquid of refractive index 1.63 up to the same height, by what distance would the microscope have to be moved to focus on the needle again ?

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. Atomic radii of the noble gases are larger than the precedent elements of the same periods because

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. Which of the following statement is correct?

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. Which one among the following sets of ions represents the collection of isoelectronic species?

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-SOLID STATE-INTEXT QUESTIONS
  1. Classify the following as amorphous or crystalline solids : polyuretha...

    Text Solution

    |

  2. Why is glass considered a supercooled liquid ?

    Text Solution

    |

  3. Refractive index of a solid is observed to have the same value along a...

    Text Solution

    |

  4. Classify the following solids in different categories based on the nat...

    Text Solution

    |

  5. Solid 'A' is a very hard electrical insulator in solid as well as in m...

    Text Solution

    |

  6. Ionic solids conduct electricity in molten state but not in solid stat...

    Text Solution

    |

  7. What type of solids are electrical conductors , malleable and ductile ...

    Text Solution

    |

  8. Give the significance of a lattice point .

    Text Solution

    |

  9. Name the parameters that characterise a unit cell .

    Text Solution

    |

  10. Distinguish between hexagonal and monoclinic unit cells .

    Text Solution

    |

  11. Distinguish between face-centred and end-centred unit cells .

    Text Solution

    |

  12. Explain how much portion of an atom located at Corner ?

    Text Solution

    |

  13. Explain how much portion of an atom located at body-centre of a cubi...

    Text Solution

    |

  14. What is the two dimensional coordination number of a molecule in squar...

    Text Solution

    |

  15. A compound forms hexagonal close-packed structure . What is the total ...

    Text Solution

    |

  16. A compound is formed by two elements M and N . The element N forms ccp...

    Text Solution

    |

  17. Which of the following lattices has the highest packing efficiency ? ...

    Text Solution

    |

  18. An element with molar mass 2.7 xx 10^(-2) kg mol^(-1) forms a cubic un...

    Text Solution

    |

  19. What type of defect can arise when a solid is heated ? Physical proper...

    Text Solution

    |

  20. What type of stoichiometric defect is shown by ZnS

    Text Solution

    |