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.Management Sciences
Category: Physics Mcqs
When two identical traveling waves are superimposed, the velocity of the resultant wave__________________?
A. decreases
B. increases
C. remains unchanged
D. becomes zero
In full wave rectification the output D.C. voltage across the load is obtained for_____________?
A. The positive half cycle of input A.C.
B. The negative half cycle of input A.C.
C. The complete cycle of input A.C.
D. All of the above.
One AMU is equal to__________________?
A. 1.66 x 10-27kg
B. 166 x 10-15ng
C. 166 x 10-20g
D. All of above
1st law of motion gives the definition of _________________________?
A. rest
B. motion
C. velocity
D. force
Which of the following pair has same direction always ?
A. force, displacement
B. force, velocity
C. force, acceleration
D. force, momentum
Terminal velocity is given by equation_______________?
A. Vt = gr2ρ
B. Vt = 2gr2/9ρ
C. Vt = gr2/9ρ
D. Vt = 9gr2/2ρ
The profile of aeroplane wing which lifts it up is called as_____________?
A. Wing shape
B. Aerofoil profile
C. Curved profile
D. None of these
An elevator weighing 3.5 x 10-6 N is raised to a height of 1000 m in the absence of friction, the work done is_________________?
A. 3.5 x 103 J
B. 3.5 x 104 J
C. 3.5 x 106 J
D. 3.5 x 109 J
The breaking of crystals along definite direction is called _____________________?
A. Cleavage
B. Symmetry
C. Isotropy
D. Homogeneity
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