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Physics

Physics
For a freely falling body, the sum of kinetic energy and potential energy is always

Same
Variable
Unity
Zero

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Physics
Fleming's right hand rule is used to find the direction of the

Actual current
Alternate current
Induced current
Direct current

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Physics
Which one among the following components is used as an amplifying device?

Transformer
Diode
Transistor
Capacitor

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Physics
Sound waves in air are

electromagnetic
longitudinal
transverse
polarised

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Physics
At what temperature (in Fahrenheit) pure water freezes?

48
32
37

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Physics
When an atom loses an electron it becomes

None of these
Neutron
Positive ion
Negative ion

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