Related Questions

The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
A $${\frac{3}{4}^{{\text{th}}}}$$ of it will disintegrate in two months
B It will completely disintegrate in two months
C It will completely disintegrate in four months
D $${\frac{l}{8}^{{\text{th}}}}$$ of it will remain intact at the end of four months
The variety of coal in which the deposit contains recognizable traces of the original plant material is
A Bitumen
B Anthracite
C Lignite
D Peat
When water itself combines chemically with some element or mineral it is called
A Carbonation
B Desilication
C Hydration
D Oxidation
If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?
A First normal form
B Second normal form
C Third normal form
D Fourth normal form
In each of the questions 20-21 , there are two quantities : Quantity A and Quantity B. You are to compare those quantities . Quantities A 5 (a-7) Quantity B 5a - 7
A Quantity A is greater
B Quantity B is greater
C Both quantities are equal
D It is impossible to determine
A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount to 8 times itself?
A 12 years
B 8 years
C 16 years
D 64 years
Chemically, marble is known as
A Metamorphic rock
B Argillaceous rock
C Calcareous rock
D Siliceous rock
Neoprene is chemically known as
A Polybutandiene
B Styrene butadiene rubber (SBR)
C Polyurethane
D Poly chloroprene
Chemically ‘Quick Silver' is known as
A Mercury
B Silver
C Aluminium
D Copper
Aspirin is chemically known as
A Methyl salicylate
B Hydroxysalicylate
C Acetylsalicylic acid
D Alkylsalicylic acid

Next steps