Model and Solved Question of Gen. science
1. To determine purity ofmetal which method can be used?
A. archimedes principle
B. pascal’s law
C. einstein’s law
D. newton’s law
Ans: A. archimedes principle
2. Which instrument is usedto study the laws of vibrating string?
A. electrometer
B. sonometer
C. spectrometer
D. manometer
Ans: B. sonometer
3. The newton’s first law isalso referred to as :
A. Law of motion
B. law of gravity
C. law of friction
D. law of inertia
Ans: D. law of inertia
4. Which instrument is used tomeasure ocean depth?
A. hygrometer
B. fathometer
C. heliometer
D. thermometer
Ans: B. fathometer
5. To convert heat intoelectrical energy which instrument can be used?
A. thermoelectric generator
B. odometer
C. tintometer
D. inkometer
Ans: A. thermoelectric generator
6. Which unit is used tomeasure intensity of sound?
A. decibel
B. kwh
C. js
D. none of above
Ans: A. decibel
7. Electron microscope isinvented by :
A. robert koch
B. james clerk maxwell
C. isaac newton
D. knoll and ruska
Ans: D. knoll and ruska
8. Blood pressure is measuredby which instrument?
A. thermometer
B. sphygmomanometer
C. vectorscope
D. barometer
Ans: B. sphygmomanometer
9. Solar cell or photovoltaticcell is used to convert :
A. Solar energy into electricity
B. heat energy into electricity
C. kinetic energy into electricity
D. none of above
Ans: A. Solar energy into electricity
10. Tesla is a standard unitof which of the following?
A. magnetic moment
B. magnetic density
C. magnetic laws
D. Magnetic induction
Ans: D. Magnetic induction
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