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Physics

Physics
What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?

24
50
36
12

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Physics
Solar energy is converted into chemical energy during

Transpiration
Photosynthesis
Diffusion
Osmosis

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Physics
Solar energy is due to

Chemical reactions
Fission reactions
Fusion reactions
Combustion reactions

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Physics
In an optical fibre the signal is transmitted

In a curved path
In a straight line path
Due to total internal reflection
Due to refraction

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Physics
The primary agent of contact metamorphism is

Flowing water
Temperature
Pressure
Weathering

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Physics
Light travels slowest in

Air
Glass
Water
Vacuum

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