CBSE Class 12 Physics Daily Practice Questions 25 October 2023

​CBSE Class 12 Physics Daily Practice Questions 25 October 2023: Physics is a mandatory subject for both medical and non-medical Science stream students. Still, they struggle to score in this subject despite its high marking capabilities. However, if the students plan accordingly, it will give you good results. It is required to give attention to Physics daily and practice the previous years’ questions from each chapter every day to manage the time. We have shared the CBSE Class 12 Physics Practice Questions with sample physics problems in each category. Give a try to these problems that have been taken out from CBSE Class 12 Physics Previous Years’ Question papers. 

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CBSE Class 12 Physics Daily Practice Questions 25 October 2023

Check out the daily practice questions for 25 October 2023 here as per their sections/question-types: 

Section A: Multiple-Choice Questions

A window is provided in the middle of a wall. Its image is obtained on the opposite wall at a distance ‘d’ from it using a lens. If the window and its image are of the same size, then the focal length of the lens used is 

1.   +d/4
2. +d/2
3. -d/4
4. -d/2

Section B: Very Short Answer Type Question

Two electrons of charge ‘e’ each move in the same circular path of radius ‘r’ with a constant speed ‘v’ each. The magnetic moment associated with the motion of these electrons is ____________.


Section C: Short Answer Type Question

An inductor L = 0·4 H, a capacitor C = 10 mF and a resistor R = 400 W are connected in series to an ac source V = 40 sin (1000 t + p/3) volt. Calculate the

1.  impedance of the circuit, and
2. peak value of current.

Section D: Long Answer Type Question

1. With the help of a diagram, explain the working of a cyclotron used to accelerate ions.
2. What will happen to the motion of the ions if the applied frequency of the alternating voltage is not equal to the resonance frequency?

Section E: Case-Based Question

1. A point object is kept on the principal axis of a convex spherical surface of radius of curvature R, separating a medium of refractive index m2 from a medium of refractive index m1 (in which the object is kept). A real image of the object is formed by  this surface.  Draw the ray diagram to show the image formation and derive the relation between the object distance and image distance in terms of m1, m2 and R.
2. A beam of unpolarised light of intensity 2 mW passes successively through two parallel polarizing sheets P1 and P2. If the angle between the pass axes of P1 and P2  is made 60°, find the intensity of light transmitted by  P1 and P2.

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