The source of tidal energy is____________________?
The source of tidal energy is____________________?
A. sun
B. earth
C. both A and B
D. moon
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The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?
The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?A. 1 atmosphere
B. 1 Newton per square meter
C. 1 Pascal
D. data is insufficientThe especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?
The especially designed semiconductor diodes used as indicator lamps in electronic circuits are___________?A. The switch
B. The light emitting diode
C. The photo diodes
D. Solar cells.Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?A. K = RNa
B. K = R/Na
C. K = Na/Ra
D. K = nRNaEinstein’s photoelectric equation is given by_______________?
Einstein’s photoelectric equation is given by_______________?A. 1/2 mvmax2=hf+Φ
B. 1/2 mvmax2-hf = Φ
C. 1/2 mvmax2=hf-Φ
D. All of above are correctLaminar flow usually occurs at speeds_____________?
Laminar flow usually occurs at speeds_____________?A. Low
B. High
C. Very high
D. Some time high and some time lowWork done by variable force is determine by dividing____________________?
Work done by variable force is determine by dividing____________________?A. force into small interval
B. displacement into small interval
C. both force and displacement into small intervals
D. force into small and displacement into large intervals