किस कोणीय स्थिति में स्थितिज ऊर्जा धनात्मक होती है?

In which angular condition is potential energy positive?

Explanation opens after your attempt
Correct Answer

A. कोण नब्बे अंश से एक सौ अस्सी अंश के बीच हो / Angle is between ninety and one hundred eighty degrees

Step 1

Concept

Between ninety and one hundred eighty degrees cosine is negative.

Step 2

Why this answer is correct

The energy formula has a negative sign.

Step 3

Exam Tip

Negative times negative makes energy positive. चरण 1: नब्बे से एक सौ अस्सी अंश के बीच कोज्या ऋणात्मक होता है। चरण 2: ऊर्जा के सूत्र में ऋण चिन्ह होता है। चरण 3: ऋण और ऋण मिलकर ऊर्जा को धनात्मक बनाते हैं।

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The correct answer is A. कोण नब्बे अंश से एक सौ अस्सी अंश के बीच हो / Angle is between ninety and one hundred eighty degrees.

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