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Physics

Physics
Which colour has the highest frequency?

Violet
Green
Red
Indigo

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Physics
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

0.33 km
33 km
1200 m
3.33 km

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Physics
Heat flows as a result of difference of ________

Density
Temperature
Volume
Mass

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Physics
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

140 m/s
1.4 km/s
0.14 m/s
14 m/s

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Physics
The sky appears blue due to

Rayleigh scattering
Mie scattering
None of these
Back scattering

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Physics
When hot-water is sprinkled on a hotter glass tumbler, it breaks because

Glass reacts chemically with water
Glass suddenly contracts
Water evaporates
Glass suddenly expands

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