Physics · Scientific Instruments
वर्षा की अम्लता इसके द्वारा मापी जाती है:
- 1बैरोमीटर
- 2पी.एच. मीटर✓
- 3एमीटर
- 4हाइग्रोमीटर
सही उत्तर देखें
पी.एच. मीटर
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