RRB Group D Exam 2022 Physics Model Paper

सौर पैनल में निम्न में से कौन सी उपधातु प्रयुक्त होती है ?

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घड़ी में चाबी देने पर कौन सी उर्जा संग्रहित होती है ?

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सरल आवर्त गति में स्थित रहता है –

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चिमटा किस प्रकार के उत्तोलक का उदाहरण है?

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वायरलेस का आविष्कार किसने किया –

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किस प्रकार की रेल इंजन की दक्षता सर्वाधिक होती है?

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धूप में उपयोग होने वाले छाते के रंग होना चाहिए –

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सौर पैनल में निम्न में से कौन सी उपधातु प्रयुक्त होती है ?