Punya Daya Tahan Lebih, Power Amplifier Hertz HMP 4D Jadi

power 4dDownload the Monsters presentation for PowerPoint or Google Slides and start impressing your audience with a creative and orinal desn. templates like this one here offerTranscript. Question 39 If the power of a lens is − 4.0 D, then it means that the lens is a (A) concave lens of focal length −50 m (B) convex lens of focal length +50 cm