Class 12 Physics — Dual Nature of Radiation and Matter Important Questions with Answers (MCQ test)

Dual Nature of Radiation and Matter — विकिरण तथा द्रव्य की द्वैत प्रकृति

Photoelectric graphs, Einstein E = φ + Kmax, and de Broglie λ = h/p. A threshold frequency is metal-specific. Intensity changes number of electrons, not Kmax (above threshold). Millikan extras as the book names them. You are on Dual Nature of Radiation and Matter (MCQ test), page 1 of 1 — 7 questions in this filter. The MCQ test keeps four options visible and the correct letter folded. Use it as a 15-minute drill: one page, twenty items, no peeking. Search intent for class 12 physics mcq test and objective questions with answers is answered here with explanations, not a bare key. Phone layout: chapter chips scroll sideways, answers stay inside a tap, and the next page is a numbered link so Google and students both get a short URL. Updated for 2026 classroom practice on the rationalized NCERT.