Test Mode
Reading Mode
Right = 0
Wrong = 0
পদার্থবিদ্যা
Light Amplification by the Solid Emission
Light Amplification by the Speedy Emission of Radiation
Light Amplification by the Stimulated Emission of Radiation
Light Amplification by the special Emission of Radiation
স্টিফেন বোল্টজম্যান ধ্রুবক