Physics · Ray Optics
लेंस की क्षमता ______ हो सकती है। I. धनात्मक II. ऋणात्मक III. शून्य
- 1केवल I और II
- 2केवल III और I
- 3केवल III और II
- 4I, II और III✓
सही उत्तर देखें
I, II और III
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