Important questions for class 12 Physics Chapter 4 Moving Charges and Magnetism

important questions class 12 physics chapter 4 moving charges magnetism 1

important questions class 12 physics chapter 4 moving charges magnetism 3

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If instead of defining principal axis as the line joining the center of curvature to mid-point of the spherical mirror, if we were to define it as the line shown below, the position of image formed for an object would change.

Always true

Always false

May be true for some special cases

Data insufficient to answer the question

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Statement I : The formula connecting u, v and f for a spherical mirror is valid only for the mirrors whose sizes are very small as compared to their radii of curvature.

Statement II : Laws of reflection are strictly valid for plane surfaces, but not for larger spherical surfaces. [ IIT JEE 2007 ]

Both the statements are correct and statement II infers to Statement I

Both the statements are correct but Statement II doesn’t infer to Statement I

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Chapter 4 - Moving Charges and Magnetism

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