Multiple choice

Transponder is a device in a satellite which is used to __________.

  1. receive and transmit signals

  2. only receive signals

  3. only transmit signals

  4. none of these
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A Correct answer
Explanation

A transponder on a satellite performs both reception and transmission of signals. It receives signals from Earth (uplink), amplifies them, shifts their frequency, and retransmits them back to Earth (downlink). This two-way communication capability is essential for satellite operations like telecommunications, broadcasting, and data relay.

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