Lognitudinal waves and Transverse waves are types of ?
Mechanical waves
Non-Mechanical waves
Both of above
None of Above
Answer: Option A
Similar Questions :
1. What is unit of Viscosity ?
coulomb
newton second per square meter
watt per meter per degree celcius
joule per kilogram per Kelvin
Answer: Option B
Explanation:
coulomb is unit of Electric Charge,
watt per meter per degree celcius is unit of Thermal Conductivity,
joule per kilogram per Kelvin is unit of Specific Heat capacity.
2. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this ?
Newton first law
Newton second law
Newton third law
Principle of conservation of linear momentum
Answer: Option D
3. What is unit of Astronomical distance ?
light year
angstrom
weber
lux
Answer: Option A
Explanation:
angstrom is used to measure wave length,
weber is used to measure Magnetic flux,
lux is used to measure Intensity of illumination.
4. When a body is immersed partly or wholly in a liquid, there is an apparent loss in weight of the body which is equal to the weight of liquid displaced by the body.