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A mobile phone tower transmits a wave signal of frequency 900 MHz, the length of the transmitted from the mobile phone tower …… (a) 0.33 m (b) 300 m (c) 2700 × 108 m (d) 1200 m |
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Answer» (a) 0.33 m f = 900 MHz = 900 × 106 Hz Speed of wave (c) = 3 × 106 ms-1 λ = \(\frac{v}{f}\) =\(\frac{3 \times 10^8}{900 \times 10^6}\) = \(\frac{1}{3}\)= 0.33m |
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