GATE Questions

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Number of cards in a pack of cards = 52

Number of black cards = 26

Number of king cards = 4 (2 Red, 2 Black)

Required, the probability that if a card is drawn either card is black or a king = 

2652 + 452 = 3052 = 1526

Lens is made up of Flint glass.

Administered prices are prices set by government or firms which are not determined by regular market forces. They do not vary in response to short-run fluctuations in demand and supply conditions.

Examples include price controls and rent controls.

The two main products of photosynthesis are sugar and oxygen. Oxygen is emitted as waste product and sugar is used for energy preparation using sun light.

German Silver is an alloy of copper, nickel and zinc. It is composed of 60% copper, 20% nickel and 20% zinc. Due to its white-silverish appearance it is named as german silver but it contains no silver in it.

Materials that usually allow electricity to pass through them are called Good conductors of electricity.

Conductors conduct electrical current very easily because of their free electrons.

Examples are :: Aluminium, Gold, Copper, Silver

Materials that do not allow or oppose electrical current & make poor conductors are called Insulators.

Examples are :: Glass, Plastic, Wood, Air,...