Which one of the following is not a donor impurity ?
Which one of the following is not a donor impurity ?
A. antimony
B. phosphorus
C. aluminium
D. arsenic
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Which one is a unit vector ?
Which one is a unit vector ?A. ??3 i^ + ??3 j^ + ??3 k^
B. 1/??3 i^ + 1/??3 j^ +1/ ??3 k^
C. ??3 / 3 i^ + ??3 / 3 j^ + ??3 / 3 k^
D. Both B and C are correctThe blood flow is _______________ flow at systolic pressure?
The blood flow is _______________ flow at systolic pressure?A. Laminar
B. Turbulent
C. Mixed
D. NoneThe uncertainty in momentum & position is due to its_____________?
The uncertainty in momentum & position is due to its_____________?A. Property of matter and radiation
B. Two-dimensional motion
C. Emission of the certain wavelength
D. Very high velocityThermions are________________?
Thermions are________________?A. protons
B. positrons
C. electrons
D. photonsMass defect per nucleon is ___________________?
Mass defect per nucleon is ___________________?A. The binding energy of the nucleus
B. Packing fraction
C. The average energy of the nucleus
D. All of above are one and the same thingThe angular position of cells remains the same for a sample of a crystal. This property is called___________________?
The angular position of cells remains the same for a sample of a crystal. This property is called___________________?A. Isotropy
B. Cleavage
C. Homogeneity
D. The external symmetry of form