Like light, sound cannot………………….
a) Pass through transparent solid
b) Pass through air
c) Pass through liquid
d) Pass through vacuum
Which of the following is not electromagnetic wave………………..
a) Y-rays
b) Cosmic ray
c) Microwave
d) None of these
To hear a clear echo, the minimum distance should be…………….
a) 165 feet
b) 165 meter
c) 16.5 feet
d) 16.5 meter
A cut diamond sparkles because of its ………
a) Hardness
b) High refractive index
c) Emission of light by the diamond
d) Absorption of light by the diamond
An example of longitudinal wave is…………
a) Slinky spring
b) Energy
c) Water wave
d) Light
