Refraction of sound can occur in:

Related Mcqs:

A wind which reverses seasonally is known as_____?

A. Trade B. Cyclonic C. Monsoon D. Polar...

The rocks formed out of layers of sediment bonded together are known as _______________?

A. Metamorphic rocks B. Sedimentary rocks C. Igneous rocks D. All of the above...

Of the six noble gases in the periodic table, which is the lightest?

A. Nitrogen B. Hydrogen C. Helium D. Oxygen...

What percentage of earth’s water supply is fresh water___________?

A. 3% B. 5% C. 21% D. None of these...

The number of spark plugs needed in a diesel engine ?

A. 1 B. 2 C. 3 D. 0...