When light passes from one medium to another, this phenomenon of change in its direction is called _____.
1). Refraction
2). Diffraction
3). Propagation
4). No option is correct
Supercooling is cooling of liquid _____.
1). below melting point
2). below freezing point
3). at melting point
4). above melting point
In which of the following class can we put Adrenaline?
1). Hormone
2). Enzyme
3). Protein
4). Fat
In how many parts is the human brain divided
1). 2
2). 3
3). 4
4). 5
Which blood group is universal donor?
1). O+
2). O-
3). AB?
4). AB+