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Physics

Physics
How much calorie of energy is released by a boiled egg ?

40
60
77
50

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Physics
A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

Conduction and radiation only
Conduction, convection and radiation
Convection and radiation only
Conduction and convection only

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Physics
Magnetic field lines about a current-carrying wire

None of these
Extend radially from the wire
Both of these
Circle the wire in closed loops

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Physics
Who among the following is credited for the discovery of ''Expanding Universe"?

Niels Bohr
Edwin Hubble
S Chandra Shekhar
V Raman

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Physics
Which of the following waves cannot be polarised?

Infrared
Ultra violet
Radio
Ultrasonic

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Physics
What is the resistance (in ohm) of an electrical component if a current of 0.1 A passes through it on application of 5 V of potential difference across it?

0.5
1
100
50

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