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Physics

Physics
Which Color has the Longest Wavelength?

Violet
Red
White
Yellow

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Physics
Sound is heard over longer distances on rainy days because

Moist air does not absorb sound
Sound travels slowly in moist air
Moist air absorbs sound
Sound travels faster in moist air

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Physics
Which one is not a part of Kepler's Law?

Law of orbits
Law of periods
Law of speed
Law of areas

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Physics
A piece of wood is held under water. The upthrust on it will be:

More than weight of the wood
Less than weight of the wood
Zero
Equal to the weight of the wood

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Physics
The coil wire in the electric room heater or electric cooking heater is called ________

Cells
Circuit
Filament
Element

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Physics
When a steel ball is placed on the surface of mercury, it does not sink because

The density of mercury is greater than that of steel
Mercury is a semisolid
Of the high viscosity of mercury
Of the surface tension of mercury

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