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80003231. Curie is a unit of
A
RadioactivityB
TemperatureC
HeatD
EnergyCorrect Answer: A. Radioactivity
80121232. Which among the following types of coal produces the most heat per unit?
A
CoalB
LigniteC
AnthraciteD
PitCorrect Answer: C. Anthracite
80107233. What is the wavelength of visaible spectrum?
A
1340 A° - 3000 A°B
3900 A° - 7600 A°C
7800 A° - 8000 A°D
8500 A° - 9800 A°Correct Answer: B. 3900 A° - 7600 A°
80022234. Coolis tube is used to produce
A
Radio wavesB
Micro wavesC
X-raysD
Gama raysCorrect Answer: C. X-rays
80128235. Which of the following is a non-renewable source of energy,?
A
BiogasB
SolarC
WindD
CoalCorrect Answer: D. Coal
80115236. When heated from 0°C to 10°C
A
Increase graduallyB
Decrease graduallyC
Increase and then will decreaseD
Decrease and then increaseCorrect Answer: D. Decrease and then increase
80009237. A multimeter is used to mesure
A
currentB
voltageC
resistanceD
All of the aboveCorrect Answer: D. All of the above
80104238. What is the full form of 'AM' regarding radio broadcasting?
A
Amplitude MovementB
Anywhere MovementC
Amplitude MatchingD
Amplitude ModulationCorrect Answer: D. Amplitude Modulation
80031239. Gamma rays can cause
A
gene mutationB
sneezingC
burningD
feverCorrect Answer: A. gene mutation
80044240. In which of the following cases. kinetic energy is being used in performing work?
A
Paddling the bicycle to cover a distanceB
Driving a car to cover a distanceC
Wind mill grinding wheat grainD
Rowing a boat in the lakeCorrect Answer: B. Driving a car to cover a distance
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