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Physics

Physics
Instruments for measuring Solar Radiation?

Pyranometer
Ammeter
Anemometer
Dynamometer

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Physics
A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be

5 R
5 R/4
R/5
4 R/5

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Physics
Bolometer is used to measure

Wavelength
Velocity
Temperature
Frequency

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Physics
Wind and solar energy are examples of

Unsustainable
Renewable
Limited
Non renewable

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Physics
According to special theory of relativity the mass of a particle

Is independent of its velocity.
Increases with increase in velocity with respect to an observer.
Decreases with increase in velocity.
Decreases with decrease in velocity.

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Physics
At the Curie temperature, the ferromagnetic materials get converted into

None of the others
Non-magnetic materials
Diamagnetic materials
Paramagnetic materials

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MORE MCQ ON Physics

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