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Full Wave Rectifier

In a super he...

Question

In a super heterodyne receiver, the IF is $455 k H z$ . If it is tuned $1200 k H z$ , the image frequency will be

A

1562 k H z

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B

1675 k H z

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C

2110 k H z

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D

2025 k H z

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Solution

The correct option is C $2110 k H z$
Given $f_{i} = 455 k H z$
$f_{s} = 1200 k H z$
$∴$ Image frequency $= f_{s} + 2 f_{i} = 1200 + 2 \times 455 = 2110 k H z$

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