X-ray are________________?
X-ray are________________?
A. of unknown nature
B. high energy electrons
C. high energy photons
D. radio isotopes
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The speed of sound in hydrogen is _____________ time than that in oxygen?
The speed of sound in hydrogen is _____________ time than that in oxygen?A. Two times
B. Three times
C. Four time
D. Six timeThermions are________________?
Thermions are________________?A. protons
B. positrons
C. electrons
D. photonsTo obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is_____________?
To obtain an n-type semiconductor germanium crystal it must be doped with foreign atoms whose valency is_____________?A. 2
B. 3
C. 4
D. 5The current through a metallic conductor is due to the motion of _________________?
The current through a metallic conductor is due to the motion of _________________?A. free electrons
B. protons
C. neutrons
D. still under controversyAmmeter connected in an AC circuit measures______________?
Ammeter connected in an AC circuit measures______________?A. The exact value of the current
B. RMS value of the current
C. The net value of the current
D. The peak value of the currentThe sensitivity of a galvanometer is given by__________________?
The sensitivity of a galvanometer is given by__________________?A. C/BAN
B. CAN/B
C. BAN/C
D. ABC/N