MCQ Practice Physics 📖 একটি ধাতুর কার্যাপেক্ষক 6.63 eV । ধাতুটির ক্ষেত্রে ফটোইলেকট্রন নিঃসরণের সূচন কম্পাঙ্ক কত? [ প্লাংকের ধ্রুবক = 6.63×10-34J.s] ক 1.6×10-19Hzখ 16×10-14Hzগ 16×1014Hzঘ Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in DU KA Unit Question Bank Physics 2017-18 Question 4 DU KA Unit Question Bank Physics 2017-18 Question 4 DU KA Unit Question Bank Physics 2017-18 Question 4 DU KA Unit Question Bank Physics 2017-18 Question 4