Question :

Metals are good conductors of electricity because


A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above

Answer : A

Description :



Related Questions - 1


It is more difficult to walk on a sandy road than on a concrete road because


A) sand is soft and concreter is hard
B) the friction between sand and feet is less than that between concrete and feet
C) the friction between sand and feet is more than that between concrete and feet
D) the sand is grainy but concrete is smooth

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Related Questions - 2


Siphon will fail to work if


A) the densities of the liquid in the two vessels are equal
B) the level of the liquid in the two vessels are at the same height
C) both its limbs are of unequal length
D) the temperature of the liquids in the two vessels are the same

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Related Questions - 3


Stars appears to move from east to west because


A) all stars move from east to west
B) the earth rotates from west to east
C) the earth rotates from east to west
D) the background of the stars moves from west to east

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Related Questions - 4


Magnetism at the centre of a bar magnet is


A) minimum
B) maximum
C) zero
D) minimum or maximum

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Related Questions - 5


Light year is a unit of


A) time
B) distance
C) light
D) intensity of light

View Answer