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|CBSE Value Based Questions for Physics|
Download CBSE Value Based Questions for CBSE Class 12 Physics Electric Charges and Fields Class 12 physics subject Electric Charges; Conservation of charge, Coulomb's law-force between two point charges, forces between multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric field. Electric flux, statement of Gauss's theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside).
Class 12th Physics CBSE Value Based Questions in for free download in PDF format. The most CBSE Value Based Questions for annual examination from are given here for download. The additional questions for practice from XII class CBSE exam are collected from various sources. It includes questions asked in previous year exams, questions provided by Kendriya Vidyalaya KV schools, DoE, Delhi government school, Navodaya Vidyalaya samiti NVS and other government and private schools in India and abroad that are affiliated to CBSE, New Delhi. Class 12 Physics have different set of questions. The questions include 1 mark questions, 2 mark questions, 3 mark questions, 4 mark questions, 5 mark questions and other questions as per the latest CBSE curriculum for the current session.
CBSE Value Based Questions, guess papers, most expected questions and best questions from 12th Physics have CBSE chapter wise CBSE Value Based Questions with solution for free download in PDF format. 12th Physics have many topics. All these topics are included in CBSE chapter wise Value Based Questions of class 12 Physics.
Class XII Physics NCERT book, refresher books and other reference books have many CBSE Value Based Questions. These questions are repeatedly asked in exams in one or other way round. Practicing such most CBSE Value Based Questions certainly help students to get good marks in exams. The solved question papers from have all type of questions may be asked in annual exams such as VSA very short answer type questions, SA short answer type questions, LA long answer type questions, VBA value-based questions and HOTS higher order thinking skill based questions.
Q: 1. A child is observing a thin film such as a layer of oil on water show beautiful colours when illuminated by while light. He feels happy and surprised to see this. His teacher explains him the reason behind it. The child then gives an example of spreading of kerosene oil on water to prevent malaria and dengue.
Ans. (i) Value –appreciation of Nature
(ii) Interference of light
Q: 2. Ravi is using yellow light in a single silt diffraction experiment with silt width of 0.6 mm. The teacher has replaces yellow light by x-rays. Now he is not able to observe the diffraction pattern. He feels sad. Again the teacher replaces x-rays by yellow light and the diffraction pattern appears again. The teacher now explains the facts about the diffraction and
Ans. (i) Motivation
(ii) As the wavelength of x-rays is much smaller than that of yellow light, so the diffraction pattern is lost when the yellow light is replaced by x-rays
Q: 3. Mohit was watching a program on the topic MOON on the Discovery channel. He came to know from the observations recorded from the surface of Moon that the sky appears dark from there. He got surprised and wanted to know the reason behind it. He discussed it with his friends, and they had the reasons as 1. Phenomenon of refraction of light 2. Phenomenon of scattering of light and explained the topic to him in detail.
(i) Name the value that was displayed by Mohit
(ii) what values were displayed by his friends
Ans. (i) curiosity
(ii) Sharing of knowledge
Q: 4. A teacher has given three lenses of power 0.5 D, 4 D, 10 D to a student. He is not sure as to which lenses would he use for constructing a good astronomical telescope. So he consults his seniors and the teacher also and constructs a telescope. Later he shows this telescope to the junior classes and explains about the choice of lenses.
• What values has he shown by doing these?
• Which lenses are used as objective and which one as Eyepiece?
Ans. (i) curiosity, sharing of knowledge
(ii) Out of these three lenses, he will use a lens of power 0.5 D for objective lens and lens of power 10D as the Eyepiece
Q: 5. A person looking at a person wearing a shirt with a pattern comprising Vertical and Horizontal lines is able to see vertical lines more distinctly than the horizontal ones. He shares his problem with his friend who suggests him to go to a doctor immediately.
(i) Name the value displayed by his friend
(ii) what is this defect due to?
(iii) How is such a defect of be corrected?
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