Question :

Sound waves in air are


A) transverse
B) longitudinal
C) electromagnetic
D) polarised

Answer : B

Description :



Related Questions - 1


Sound waves in air are


A) transverse
B) longitudinal
C) electromagnetic
D) polarised

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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

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Related Questions - 3


Of the following properties of a wave, the one that is independent of the other is its


A) amplitude
B) velocity
C) wavelength
D) frequency

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Related Questions - 4


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 - 5


Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2


A) 0.14 m/s
B) 140 m/s
C) 1.4 km/s
D) 14 m/s

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