CBSE Class 12 Physics Daily Practice Questions 20 October 2023

CBSE Class 12 Physics Daily Practice Questions 20 October 2023

​CBSE Class 12 Physics Daily Practice Questions 20 October 2023: For Science stream students, Physics is a mandatory subject. Students find it difficult to score well despite its high marking capabilities. However, if you make the plans and strategy 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 20 October 2023

Check out the daily practice questions for 20 October 2023 here as per their sections/question-types:

Section A: Multiple-Choice Question

During the process of b– decay,

1. an atomic electron is ejected.

2. an electron which was already present in the nucleus, is ejected.

3. a neutron is converted into a proton and the created electron is ejected from the nucleus.

4. a proton is converted into a neutron and the created electron is ejected from the nucleus.

Section B: Very Short Answer Type Question

An electron in a hydrogen atom jumps from state n = 3 to n = 1. The change in the angular momentum of the electron will be ____________.

Section C: Short Answer Type Question

Two point charges q and – q are located at (0, 0, – a) and (0, 0, a) respectively.

1. Depict the equipotential surfaces due to this arrangement.
2. Find  the amount of work done in moving a small test charge  q0 from point (l, 0, 0) to (0, 0, 0).

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Section D: Long Answer Type Question

The thickness of a  conductor continuously decreases from its one end (A) to another end (B). It is connected across the terminals of a battery. What will be the effect on the value of

1. electric field,
2. current density, and
3. mobility of the electron

at a point on the conductor as one moves from end A to end B ?

Section E: Case-Based Question

1. With the help of a diagram, explain the working of a moving coil galvanometer. Justify the necessity of using radial magnetic field in it.
2. A galvanometer can be converted into a voltmeter to measure up to

1. V volt by connecting a resistance of 2 kW in series with the galvanometer.
2. 2 V volt by connecting a resistance 5 kW in series with the galvanometer.

Calculate the resistance that should be connected in series with the galvanometer to convert it into a voltmeter to measure up to V/2 volt.

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