Physics MCQs

Page No. 5

Metabolism is the name of a process in which energy transformation takes place within______________?


aHeat engine

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bHuman body

✓


cAtmosphere

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dLaboratory

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View Answer Human body

We can produce heat by________________?


aFrictional process

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bChemical processes

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cElectrical processes

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dAll of the above

✓


View Answer All of the above

At constant temperature the graph between V and 1/P is_____________?


a Hyperbola

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bParabola

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cA curve of any shapeA straight lime

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dA straight lime

✓


View Answer A straight lime

The scales of temperature are based on two fixed points which are_________________?


aThe temperatures of water at 0? 100?C

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bThe temperature of melting ice and boiling water at atmospheric pressure

✓


cThe temperatures of ice cold and boiling water

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dThe temperatures of frozen and boiling mercury

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Temperature is a property which determines_________________?


aHow much heat a body contains

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b Whether a body will feel hot or cold to touch

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cIn which direction heat will flow between two systems

✓


dHow much total absolute energy a body has

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Dimension of pressure is__________________?


aMLT

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bML-1T-1

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cML-1T-2

✓


dML-2T-2

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View Answer ML-1T-2

The specially designed semi-conductor diodes used as fast counters in electronic circuits are_______________?


aThe light emitting diodes

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bPhoto diodes

✓


cPhoto voltaic cell

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dSolar cells.

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View Answer Photo diodes

The rectangular voltage is an example of____________________?


aAn analogue waveform

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b Continuous wave form

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cElectronic waveform

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dA digital waveform

✓


View Answer A digital waveform

An OP-AMPs can amplify_______________?


aD.C.

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bA.C.

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cBoth A.C. & D.C.

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dNone of the above

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View Answer A.C.

Acceptor and donor impurities donate______________?


an-carriers only

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bp-carriers only

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cp-carriers and n-carriers respectively

✓


dn-carriers and p-carriers respectively

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