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.Management Sciences
Category: Physics Mcqs
In multiplication and division of measurement______________?
A. Percentage uncertainties are added
B. Absolute uncertainties are added
C. Percentage uncertainties are divided
D. Absolute uncertainties are divided
We prefer mercury as a thermometric substance because______________?
A. Over a wide range of temperature its expansion is uniform
B. It does not stick to thermometer glass
C. It opaque to light
D. All of above
Pair production can take place only with_________________?
A. X-rays
B. Gamma rays
C. UV-rays
D. IR-rays
On the basis of band theory of solids the semiconductors have _____________________?
A. A party filled valence band and totally empty conduction band
B. A completely filled valence band a totally empty conduction band and a very wide forbidden band
C. A completely filled valence band a partially filled conduction band and a narrow forbidden band
D. A partly filled valence band a totally empty conduction band and a wide forbidden band
The operation of a transistor requires______________?
A. That the emitter be heated
B. That the base be heated
C. That the collector be heated
D. None of the above
Laminar flow usually occurs at speeds_____________?
A. Low
B. High
C. Very high
D. Some time high and some time low
Physics is one of the branches of___________?
A. Physical sciences
B. Biological sciences
C. Social science
D. Life sciences branch
If stretching force T of wire increases, then its frequency __________________?
A. decreases
B. increases
C. remains the same
D. any of above
Semi-conductor germanium and silicon are_________________?
A. pentavalent
B. trivalent
C. divalent
D. tetravalent
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