M

Mr. Dubey • 52.30K Points
Coach 

Q. When a longitudinal wave sound beam passes through an acoustic interface at some angle other than zero degrees:

(A) Surface waves are generated
(B) Plate waves are generated
(C) Reflection, refraction and mode conversion will occur
(D) The first critical angle is reached
Correct : Option (C)

Share

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs

Q. Starting torque depends on

Q. Isolate the factor on which bursting pressure of boiler does not depend

Q. Cracks which are caused by a combination of tensile stress and corrosion are called:

Q. The temperature of the blades of a gas turbine may be closer to

Q. Four balls made of lead, glass, brass and iron made of same size, are heated to 100?C. They are simultaneously placed on a sheet of paraffin nearly 5

Q. In gas and petrol engines thermal efficiency may be expected in the range

Q. Work done on a system is taken to be

Q. In the fuel injection pumps for Diesel engine the effective pressure strokes of the plungers in the fuel injection pump are regulated by means of a

Q. Speed control by Ward Leonard method, can give uniform speed variation

Q. When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modul