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Physics

Physics
Sound becomes hazardous noise pollution at decibels?

Above 30 db
Above 120 db
Above 80 db
Above 50 db

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Physics
The unit of force is a

Fundamental Unit
Derived Unit
Basic Unit
None of these

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Physics
Middle latitude cyclones are fueled by?

All of these
Energy from falling precipitation
Polar continental air masses
Air high in the atmosphere

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Physics
What is the wavelength of visible spectrum ?

7800 A° – 8000 A°
1300 A°–3000 A°
3900 A° – 7600 A°
8500 A° – 9800 A°

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Physics
A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to

Inertia of motion
Outward pull on him
Change in momentum
Change in acceleration

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Physics
Why is it difficult to breathe at higher altitudes?

Due to low temperature
Due to ozone
Due to low air pressure
Due to high humidity

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MORE MCQ ON Physics

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