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Physics

Physics
Sound waves cannot travel through

Solid
Vacuum
Liquid
Gas

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Physics
A body absorbs heat most if it is

Black and smooth
White and smooth
White and rough
Black and rough

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Physics
The flux commonly used in brazing is

Zinc chloride
Resin plus alcohol
Borax
Ammonium chloride

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Physics
Name the process by which bubbles from liquid are formed?

Surface Tension
Effervescence
Surface Energy
Degasification

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Physics
Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?

2.8 km, 0.25 km
3.3 km, 0.30 km
2.2 km, 0.20 km
1.8 km, 0.15 km

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Physics
Radio activity is due to

Unstable nucleus
Stable electronic configu-ration
Stable electronic configu-ration
Stable nucleus

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MORE MCQ ON Physics

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