Which solid is likely to be the best material for converting sunlight into electricity?
Potassium, rubidium.
255 Views
Advertisement
Which ‘point defect’ lowers the density of ionic crystals?
228 Views
What is the difference between ferromagnetic and ferrimagnetic substances?
224 Views
What other element may be added to silicon to make electrons available for the conduction of electric current?
468 Views
Long Answer Type
What is a semiconductor? Describe two main types of semiconductors, giving examples and their distinctive features.
354 Views
Advertisement
Short Answer Type
In an alloy of gold and cadmium, gold crystallizes in cubic structure occupying the corners only and cadmium fits into the face centre voids. What is quantitative composition of the alloy?
379 Views
What is the effect of Frenkel defect on electrical conductivity of the solid?
1229 Views
Long Answer Type
Assign reasons the following: (i) Phosphorus doped silicon is a semi-conductor. (ii) Schottky defect lowers the density of a solid. (iii) Some of the very old glass objects appear slightly milky instead of being transparent.
384 Views
Short Answer Type
Why does Frenkel defect not change the density of AgCl crystal?
804 Views
Advertisement
<
What is the difference between glass and quartz, though both contain SiO44– units?
