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Question Detail
Which instrument is used to measure changes in volume of substances ?
- Dyanamo
- Dilatometer
- Cyclotron
- Electroscope
Answer: Option B
Explanation:
Dyanamo - is used to convert mechanical energy into electrical energy,
Cyclotron - is a charged particle accelerator which can accelerate charged particles to high energies,
Electroscope - is used to detect the presence of an electric charge.
1. Which instrument is used to measure pressure of gases ?
- Manometer
- Machmeter
- Magnetometer
- Micrometer
Answer: Option A
Explanation:
Machmeter - is used to determine the speed of an aircraft in terms of speed of sound,
Magnetometer - is used to compare magnetic movements and fields,
Micrometer - is used to convert sound waves into electrical vibrations.
2. Which instrument is used to measure changes in volume of substances ?
- Dyanamo
- Dilatometer
- Cyclotron
- Electroscope
Answer: Option B
Explanation:
Dyanamo - is used to convert mechanical energy into electrical energy,
Cyclotron - is a charged particle accelerator which can accelerate charged particles to high energies,
Electroscope - is used to detect the presence of an electric charge.
3. What is displacement ?
- Longest distance covered by a body in a random direction.
- Shortest distance covered by a body in a random direction.
- Shortest distance covered by a body in a definite direction.
- Longest distance covered by a body in a definite direction.
Answer: Option C
4. Which are the primary Colours ?
- Yellow, Green, Blue
- Red, Magenta, Blue
- Red, Green, White
- Red, Green, Blue
Answer: Option D
Explanation:
Red, Green, Blue are primary colours. All the colours can be produced by them by mixing in different proportions. Interesting :)
5. What is unit of Viscosity ?
- coulomb
- newton second per square meter
- watt per meter per degree celcius
- joule per kilogram per Kelvin
Answer: Option B
Explanation:
coulomb is unit of Electric Charge,
watt per meter per degree celcius is unit of Thermal Conductivity,
joule per kilogram per Kelvin is unit of Specific Heat capacity.
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