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Recent questions tagged electromagnetic-spectrum

Some radio waves of frequency of about $1.5 \times 10^9$ Hz were received by a radio-telescope from distant star. If the speed of the waves is $3 \times 10^5 \: km/s$, then the wave- length of the wave will be:

asked Feb 28, 2014 by thanvigandhi_1

1 answer

An object is placed at some distance from a radio station. If the interval between transmission and reception of pulses is $2.66 \times 10^{-2}\: sec$, then the distance is:

asked Feb 28, 2014 by thanvigandhi_1

1 answer

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