Contents

One cubic millimetre of blood contains _______ of white blood cells.
a) 6000-7000                      
b) 7000-8000
c) 8000-9000                      
d) 9000-10000

b

The occurrence of the same crystalline substance in more than one crystalline forms under different conditions is known as:
a) Anisotropy                      
b) Allotropy
c) Isomorphism  
d) Polymorphism

d

The horizontal distance from point of projection to point of impact is called _______ of projectile.
a) height                               
b) displacement
c) range                               
d) velocity

c

Human skin color is an example of:
a) Multiple allele
b) Sex linked inheritance
a) Epistasis             
d) Polygenic inheritance

d

The closeness of a measure value to the actual value of the measured quantity is:
a) Precision                          
b) Accuracy
c) Significant figure           
d) Certainty

b

Which one of the following is a device that lets current flow in only one direction?
a) Transistor                        
b) Capacitor
c) Resistor                            
d) Diode

d