Question :
A) transverse
B) longitudinal
C) electromagnetic
D) polarised
Answer : B
Sound waves in air are
A) transverse
B) longitudinal
C) electromagnetic
D) polarised
Answer : B
Description :
Related Questions - 1
Light from the Sun reaches us in nearly
A) 2 minutes
B) 4 minutes
C) 8 minutes
D) 16 minutes
Related Questions - 2
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to
A) the heating effect of current alone
B) hysteresis loss alone
C) both the heating effect of current and hysteresis loss
D) intense sunlight at noon
Related Questions - 3
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
Related Questions - 4
Magnetism at the centre of a bar magnet is
A) minimum
B) maximum
C) zero
D) minimum or maximum
Related Questions - 5
Let a thin capillary tube be replaced with another tube of insufficient length then, we find water
A) will overflow
B) will not rise
C) depressed
D) change its meniscus