Which branch of science plays an important role in engineering?
Which branch of science plays an important role in engineering?
A. Biology
B. Chemistry
C. Physics
D. All of these
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The frequency of the second pendulum is________________?
The frequency of the second pendulum is________________?A. 1 hertz
B. 0.5 hertz
C. 1.5 hertz
D. 2.5 hertzWhich one has the greatest energy gap ?
Which one has the greatest energy gap ?A. Semi conductor
B. Conductor
C. Metals
D. Non metalsIn liquids and gases the current is due to the motion________________?
In liquids and gases the current is due to the motion________________?A. negative charges
B. positive charges
C. both negative and positive charges
D. neutral particlesThe band theory of solids explains satisfactorily the nature of_________________?
The band theory of solids explains satisfactorily the nature of_________________?A. Electrical insulators alone
B. Electrical conductors alone
C. Electrical semi conductors alone
D. All of the aboveOptical active crystals rotates the __________________?
Optical active crystals rotates the __________________?A. vibrating plane
B. polarization plane
C. diffraction plane
D. interference planeMany of the semi conductors are crystals of the type__________________?
Many of the semi conductors are crystals of the type__________________?A. Face centred cubic
B. Body centred cubic
C. Simple cubic
D. All of the above