Physics
If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to ________.

300 m
3 m
30 m
0.3 m

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Physics
Which of the following options correctly explains the term heat budget?

It is the radiation from the earth in the form of long waves.
It is a mode of transfer of heat through matter by molecular activity.
It is the amount of heat which the surface of earth receives from the sun.
It is the balance between incoming and outgoing radiation

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