An example in which light emitting diodes are used is :

calculator

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hard drive

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optical drive

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analog watch

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Solution

The correct option is A calculator
Light emitting diodes are used in calculators.

Option A is correct.

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An example in which light emitting diodes are used is :

The correct option is A calculatorLight emitting diodes are used in calculators.Option A is correct.

The correct option is A calculator
Light emitting diodes are used in calculators.

Option A is correct.