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12th Assignments Test Preparation

Very important numericals physics( term-2)

Important numericals physics term-2 (CBSE) What is apparent position of the object below a rectangular block of glass 6cm thick , if a layer of water 4cm thick is on the top of the glass ? Refractive index of glass and water with respect to air is 3/2 and 4/3 respectively. A screen is placed […]

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12th Assignments Test Preparation

Physics Sample paper class12th(term-2)

Sample paper -1                                                         Class 12th                                                     Physics (Theory)   Term-2                                  M.M: 35                                                                                                             TIME-2Hrs  Here Physics classes by Nayan jha providing CBSE Term-2 Physics sample paper . There are 12 questions in all and all questions are compulsory.  This question paper consists of three section A,B and C. SECTION A has three questions of two […]

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12th Assignments

Case study based questions on Photoelectric effect

Photoelectric effect Photoelectric effect is the phenomenon of emission of electrons from a metal surface , when radiation of suitable frequency fall on them . The emitted electrons are called photoelectrons and the current so produced is called photoelectric current. i. With the increase of intensity of incident radiation on photoelectrons emitted by a photo […]

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Test Preparation

Test Dual nature, Atoms Nuclei and semiconductor

Here physics classes by Nayan jha providing the test paper based on the chapter Dual nature, Atoms nuclei and semiconductor devices , After solving this question paper students can notice his preparation for class 12th CBSE (Board examination ). To get the question paper related to this topic click here- PHYSICS CLASSES BY NAYAN JHATest […]

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12th Assignments Assignments

Hots questions based on semiconductor

Hots questions based on Semi conductors. These questions are important for class 12th board Examination. Q. 1. What are different types of compound semiconductors? Give two examples of each. Ans- The compound semiconductors are of following types Inorganic semiconductors: Cds, GaAs, CdSe Organic semiconductors: Anthracene, pthalocynines Organic polymers: Polyparrole, polyaniline, polythiophene. Q. 2. Which characteristic […]

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Test Preparation

Test paper of Dual nature of matter and atoms and nuclei

This test paper d contain the questions of chapter, Dual nature and atoms and nuclei . Having completed these chapter students must try to solve this question paper. Provided by Nayan jha.         Physics classes by Nayan jha                                            Test class 12th                    (   Dual nature , Atoms and nuclei ) 1. Draw a suitable graph […]

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11th assignment Assignments

Important questions of physics (Term-2)

Important questions of class 11th [physics (Term-2)] This assignment contain the questions of following chapters [ 1- Solids ( elasticity), 2- Fluids , 3- Thermal properties of matter, 4- Thermodynamics,5-Oscillations ,6-Waves ] 1 .What are the basic assumptions of kinetic theory of gases? on their basis, derive an expression for the pressure exerted by an […]

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11th Notes

Beats

BEATSIf two tuning fork whose frequency is slightly different are sounded together , the sound we hear periodically fluctuates in intensity , i.e intensity increases and decreases suddenly . This periodic variations in intensity of sound are called beats. So we can define “ Beats are periodic vibration in the intensity of sound when two […]

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Syllabus class12th physics (Term-2) (2021-2022)

Important questions of ray optics Physics classes by Nayan jha providing the syllabus for term -2 CBSE (physics)Examination ; guided by CBSE( Distribution of marks may change in some circumstances) CBSE Class 12 Physics Syllabus Term – 2 (2021-22) Time: 2hrs  Max Marks: 35 SI. No. Chapter Name marks Unit–V Electromagnetic Waves 2-3 Chapter–8: Electromagnetic […]

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11th assignment Assignments

Important questions of oscillations

Important questions of oscillations- 1. What is meant by periodic and oscillatory motion? Distinguish between them. 2. What is meant by SHM . Find the expressions for displacement , velocity and acceleration. Also find the phase difference between them. 3. Find the potential energy and kinetic energy of a SHM and hence show that total […]