Find CBSE Class 12 Physics Practice Paper (Set-V) for the coming exam. This paper contains important questions from 5th unit (Electromagnetic waves of class 12th physics. These questions will not only help the students to prepare for exams in a better manner, but will also help them in understanding the depth with which a topic should be studied.
Few sample questions from the Question Paper are given below:
Q. Can we expect a magnetic field in space in absence of conduction current? Explain in brief.
Q. Electromagnetic waves transport momentum. Why we do not feel any radiation pressure in sun light? Give reason.
Q. A capacitor is made up of two circular plates each of radius 12 cm and separated by 5 cm. The capacitor charging current is 0.15 A. Calculate the capacity and the rate of change of potential difference between the plates.
Q. Name the constituent radiation of electromagnetic spectrum which is used for:
(i) aircraft radiation,
(ii) warfare to look through fog.
Q. A professor was teaching about Ampere’s circuital law. He told his students that Ampere’s circuital law for conduction current during charging of a capacitor was found inconsistent. Therefore, Maxwell modified Ampere’s circuital law. The displacement current produces in spaces due to change of electric flux linked with the surface. This reveals that varying electric field is the source of magnetic field. A student asked the professor that what happens if the capacitor is fully charged. Professor explained the concept with necessary theory.
(i) What values you have observed in the student?
(ii) What happens when the capacitor is fully charged?
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