Competitive exam important physics questions
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| Competitive exam important physics questions |
1. Rate of change of momentum is called?
A. Force B. Pressure
C. Velocity D. Speed
Answer. A
2. Which Instrument is used to measure depth of ocean?
A. Endoscope B. Ammeter
C. Fathometer D. Anemometer
Ans. C
3. AC Voltage in our household circuit ____
A. 135V B. 220V
C. 230V D. None of the above
Ans. C
4. Rate of change of distance is called?
A. Force B. Pressure
C. Velocity D. Speed
Ans. D
5. Which Instrument is used to measure the power of electric circuit?
A. Volt meter B. Barograph
C. Watt meter D. Wave meter
Ans. C
6. Rate of change of displacement is called?
A. Speed B. Work
C. Force D. Velocity
Answer. D
7. Which Instrument is used to determine the intensity of colors?
A. Chronometer B. Cathetometer
C. Colorimeter D. Commutator
Ans. C
8. The Electric circuit which changes its direction at regular intervals of time is called ___
A. Alternating Current B. Direct Current
C. Three phase current D. All the above
Ans. A
9. What is the value of acceleration of a body moving with constant velocity?
A. One B. Two
C. Three D. Zero
Ans. D
10. The EMF of a dry cell is ___
A. Zero Volt B. one volt
C. 1.5 volt D. 2 Volt
11. _____ Instrument is used for measuring sound under water?
A. Hygrometer B. Hygroscope
C. Hypsometer D. Hydrophone
Ans. D
12. What is the unit for electric charge?
A. Ampere B. Coulomb
C. Newton D. Volt
Ans. B
13. What is the unit for Viscosity?
A.Coulomb B. newton second per square meter
C. watt per meter per degree Celsius D. joule per kilogram per kelvin
Ans. B
14. What is the audible frequency range?
A. frequency less than 20 Hz
B. frequency between 20Hz to 20000Hz
C. frequency more than 20000Hz
D. frequency less than 20Hz
Ans. B
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