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1. 6.63×10⁻⁷ তরঙ্গ দৈর্ঘ্যের ফোটনের শক্তি কত হবে? (h=6.63× 10⁻³⁴ Js)

  • A. 3×10⁻¹⁹J
  • B. 3×10⁻¹⁹J
  • C. 3×10⁻¹⁹J
  • D. 3×10⁻¹⁹J

Answer: Option A

Explanation:


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