Question :

Sound waves in air are


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

Answer : B

Description :



Related Questions - 1


The absorption of ink by blotting paper involves


A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
D) siphon action

View Answer

Related Questions - 2


Pa(Pascal) is the unit for


A) thrust
B) pressure
C) frequency
D) conductivity

View Answer

Related Questions - 3


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

View Answer

Related Questions - 4


Rectifiers are used to convert


A) Direct current to Alternating current
B) Alternating current to Direct current
C) high voltage to low voltage
D) low voltage to high voltage

View Answer

Related Questions - 5


Mirage is due to


A) unequal heating of different parts of the atmosphere
B) magnetic disturbances in the atmosphere
C) depletion of ozone layer in the atmosphere
D) equal heating of different parts of the atmosphere

View Answer