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#10402 Bangla Language & Literature General Level 0

একটি ধাতুর কার্যাপেক্ষক 6.63 eV । ধাতুটির ক্ষেত্রে ফটোইলেকট্রন নিঃসরণের সূচন কম্পাঙ্ক কত? [ প্লাংকের ধ্রুবক = 6.63×10-34J.s]

  1. A 1.6×10-19Hz
  2. B 16×10-14Hz
  3. C 16×1014Hz
Answer: C - 16×1014Hz

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