NCERT Solutions for Class 12 Physics Chapter 11 - Dual Nature of Radiation and Matter. Solve free mcqs on dual nature of electromagnetic radiation class 11 chemistry ch2, helpful for CBSE, NEET / AIPMT & JEE preparation. ALL electromagnetic radiation is light, but our eyes can only see a small portion – called visible light a. An electromagnetic wave has dual (wave–particle) nature. Einstein in 1905 suggested that light has dual nature, i.e. Hence, we assume the dual nature of light. Your email address will not be published. On the other hand, the photoelectric effect is supported by the particle nature of light. Physics Notes by Akhil. Photoelectric effect occurs when light of frequency greater than threshold frequency fall on metal plate, electrons get emitted from the metal surface. These solutions are useful for UP Board students also. Spectrum due to the emission of white light by gas at high temperature is known as an emission spectrum. The photons emitted from a source, travel through space with the same speed c (equal to the speed of light). Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter: Section Name Topic Name 11 Dual Nature of Radiation and Matter 11.1 Introduction 11.2 Electron Emission 11.3 Photoelectric Effect 11.4 Experimental Study of Photoelectric Effect 11.5 Photoelectric Effect and Wave Theory of Light 11.6 Einstein’s Photoelectric Equation: Energy […] Dual Nature Of Radiation And Matter NCERT Solutions – Class 12 Physics. – It is a characteristic of a molecule. Required fields are marked *, Louis de Broglie, a French physicist, in 1924, suggested that all microscopic as well as macroscopic objects possesses dual character. Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Photoelectric effect occurs when light of frequency greater than threshold frequency fall on metal plate, electrons get emitted from the metal surface. The era in which we are living has changed its ambience from being manual to all digital. Mechanical waves 3. Davisson and Germer in 1927 observed that when a beam of electrons is allowed to fall on the surface of nickel crystal and the scattered or reflected rays are received on a photographic plate, a diffraction pattern (consisting of number of concentric rings) similar to that produced by X-ray, is obtained. Solution: According to … The maximum energy in the thermal radiation from a heat source occurs at a wavelength of 1 2 × 1 0 − 5 c m. According to Wien's displacement law, the temperature of this source will be 'n' times the temperature of another source for which the wavelength at maximum energy is 6 × 1 0 − 5 c m . This is called speed of light. Concise NCERT Class 12 Revision Notes Physics Chapter 11 Solution will help you to learn and understand the above-mentioned topics. Story of Photoelectric Effect Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter: Section Name Topic Name 11 Dual Nature of Radiation and Matter 11.1 Introduction 11.2 Electron Emission 11.3 Photoelectric Effect 11.4 Experimental Study of Photoelectric Effect 11.5 Photoelectric Effect and Wave Theory of Light 11.6 Einstein’s Photoelectric Equation: … NCERT Solutions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter can be of great value if you are trying to excel in your school examinations. in this video we cover all important topics topics covered---- photoelectric effect explanation of photoelectric effect terms related to photoelectric effect free electron work function. Popular Questions of Class Physics. Q.1. A discharge takes place between the two electrodes on applying the electric field to the gas in the discharge tube. 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