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Physics

Physics
Pa(Pascal) is the unit for

Frequency
Thrust
Pressure
Conductivity

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Physics
The frequency used in TV and radar system lies in

HF
SHF
VHF
UHF

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Physics
Pycnometer is an instrument used to measure the

Intensity of solar radiation
High temperatures
Intensity of earthquake
Density

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Physics
If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?

LUV < lVIS < lIR
LUV > lVIS > lIR
LUV < lIR < lVIS
LUV > lIR > lVIS

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Physics
The speed of light in air is

Infinity
3 × 108 m/s
3 × 10–8 m/s
8 × 103 m/s

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Physics
A wire carrying current is

Negatively charged
Charged with a type depending upon current strength
Positively charged
Neutral

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