Which of the following is not an evidence of the particle nature of matter?
Diffusion
Brownian motion
Diffraction
Crystal structure
Photoelectricity
Correct answer is C
No explanation has been provided for this answer.
What is the difference between a crystalline and an amorphous solid? A crystalline solid
has cubic structure while amorphous solid has hexagonal structure
has regularly-repeating pattern while an amorphous solid has not
is white while amorphous solid is yellow
is always hard while amorphous solid is always soft
melts on heating while an amorphous solid sublimates on
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not crystal?
Sodium chloride
Lead
Copper (II) tetraoxosulphate (VI)
Glass
Germanium
Correct answer is B
No explanation has been provided for this answer.
Viscosity in a liquid does not depend on the
nature of the liquid
relative velocity between the liquid layers
area of the surfaces in contact
temperature of the liquid
normal reaction between the liquid layers
Correct answer is E
No explanation has been provided for this answer.
Surface tension
Hydrostatic upthrust
Viscosity
Diffusion
Osmosis
Correct answer is A
No explanation has been provided for this answer.