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Physics

Physics
Period of oscillation of 3 cm microwaves in seconds is

0.001
1 × 10–10
0.01
1 × 1010

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Physics
What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space?

35 km/sec
21 km/sec
18 km/sec
11.2 km/sec

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Physics
Megahertz is a measurement of

Speed
Capacity
Frequency
Wavelength

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Physics
During hot weather, the fan produces a feeling of comfort. This is because

Our perspiration eva-porates rapidly
Fan cools the air
Fan supplies cool air
Conductivity of air increases

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Physics
Which of the following is an example of continous emission spectrum?

Spectrum of a water
Both
None
Spectrum of an oil frame

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Physics
What is the range of masses involved in the study of Physics?

10-19 kg to 1038 kg
10-19 kg to 1055 kg
10-30 kg to 1030 kg
10-30 kg to 1055 kg

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