Physics
A pilot has to release the bomb to hit a target

None of these
Beyond the target
Before the target
Right above the target

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Physics
An integrated circuit is more advantages than a coventional circuit because

A faulty part of a conventional circuit may be difficult to locate and repair
They make the electric equipments more reliable and easier for servicing
All listed here
If a part of the integrated circuit fails the entire circuit is simply replaced

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Physics
The blue colour of sky is due to

Scattering of longer wavelengths of sunlight in the atmosphere
Refraction of sunlight
Reflection of sunlight
Scattering of shorter wavelengths of sunlight in the atmosphere

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