अलार्म घड़ी कैसे काम करती है?

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अलार्म घड़ी कैसे काम करती है?



अलार्म घड़ी एक तय समय पर घंटी या टोन बजाती है। इसमें टाइमर और साउंड सिस्टम लगा होता है, जो यूजर को जगाने के लिए होता है। 

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