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Physics

Physics
The metal whose electrical conductivity is more, is

Lead
Aluminium
Silver
Copper

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Physics
A metal-semiconductor junction diode is called ________

P-N Juction diode
Tunnel diode
Photo diode
Schottky diode

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Physics
Which of the following is indicated by the colour of a star ?

Temperature
Distance
Weight
Size

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Physics
The oil in the wick of lamp rises due to

Low viscosity of oil
Pressure difference
Pheonomenon of capillarity
Force of cohesion

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Physics
If a band is played on the moon the sound will

Reverberate
Be heard by us faintly
Be heard upto 10km from it
Not be heard at any distance at all from it

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Physics
When a vehicle passes, TV reception gets distorted. This is because

Vehicle pollution affects the performance of the TV components
Spark plug creates electromagnetic disturbances
Metal reflects radiowaves
Modern vehicles use electroignition system

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