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Question Detail
Which instrument is used to measure the power of electric circuit ?
- Voltmeter
- Wattmeter
- Wavemeter
- Viscometer
Answer: Option B
Explanation:
Voltmeter - is used to measure electric potential difference between two points,
Wavemeter - is used to measure the wavelength of a radiowave,
Viscometer - is used measure viscosity of liquid.
1. Sudden fall in barometer is indication of
- Storm
- Rain
- Tide
- Clear weather
Answer: Option A
2. Thomas Alva Edison invented
- Cinema
- Cine Camera
- Computer
- Cinematograph
Answer: Option D
Explanation:
Thomas Alva Edison of USA invented Cinematograph in 1891,
Cinema was invented by A.L. and J.L. Lumiere of France in 1895,
Cine Camera was invented by Friese-Greene of Britain in 1889,
Computer was invented by Charles Babbage of Britain in 1834, he is also known as Father of Computer.
3. The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called
- Nuclear fusion
- Nuclear fission
- Nuclear reaction
- Fast breeding
Answer: Option B
4. What is unit of Work and Energy ?
- Joule
- kilogram
- amphere
- meter
Answer: Option A
5. Name of the instrument to measure atomspheric pressure ?
- Barometer
- Barograph
- Bolometer
- Callipers
Answer: Option A
Explanation:
Barograph - Recordings of atmospheric pressure,
Bolometer - Used to measure heat radiation,
Callipers - Used to measure inner and outer diameters of bodies.
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