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Showing posts with label class12-Physics. Show all posts
Showing posts with label class12-Physics. Show all posts

# CBSE Class 12 Physics - Term 2 - MCQs + Sample Question Paper (2021-22)

Maximum Marks: 35

Duration: 2 Hours

(i) There are 12 questions in all. All questions are compulsory.

(ii) This question paper has three sections: Section A, Section B and Section C.

(iii) Section A contains three questions of two marks each, Section B contains eight questions of three marks each, Section C contains one case study-based question of five marks.

# CBSE Class 12 Term 2 Sample Question Papers 2021-22

CBSE (Central Board of Secondary Education) has released the Sample Question Papers for Class 10 and Class 12 Term 2 in the academic year 2021-22.

CBSE (Central Board of Secondary Education) has released the Sample Paper for Class 10 12 Term 2 Exams 2022. CBSE released the sample papers on their official website for both the Classes 10th and 12th and these papers are in a subjective format.

Students can check the sample paper at https://cbseacademic.nic.in/

These papers are in a subjective format.

# MCQs for practice

Level: Easy

Q1: How much positive charge and negative charge is there is a cup of water of mass 250g?

(a) 1.34 × 10⁶C

(b) 1.34 × 10⁷C

(c) 1.34 × 10⁸C

(d) 1.34 × 10⁹C

# Physicists and Their Major Contributions

For Class 11/Class 12 Physics - NEET - JEE

Physics deals with the study of the basic laws of nature and their manifestation in different phenomena. The basic laws of physics are universal and are applied in widely different contexts and conditions. Physics is a basic discipline in the category of natural sciences which also includes other disciplines like Chemistry and Biology. The word physics comes from a Greek word meaning nature.

Here is a partial list of Physicists and their contributions in various fields of physics.

# CBSE Class 12 - Physics Preboard Sample Question Paper (2020-21)

Physics is a study of basic laws of nature and their manifestation in different natural phenomena. Physics is the study of physical world and matter and its motion through space and time, along with related concepts such as energy and force. The class 11 and 12 syllabus provides logical sequencing of the ‘Units’ of the subject matter with proper placement of concepts with their linkages for better understanding.

Here follows the class 12  Physics sample question paper along with marking scheme and answers helping you in your studies.

# CBSE Class 12 - Physics Sample Question Paper + Marking Scheme - (2020-21)

Physics is a study of basic laws of nature and their manifestation in different natural phenomena. Physics is the study of the physical world and matter and its motion through space and time, along with related concepts such as energy and force. The class 11 and 12 syllabus provides logical sequencing of the ‘Units’ of the subject matter with proper placement of concepts with their linkages for better understanding.

Here follows the class 12  Physics sample question paper along with marking scheme and answers helping you in your studies.

# CBSE Class 12 Sample Question Papers (2020-21) With Marking Schemes PDF Files

CBSE has issued new CBSE Sample Papers 2020-21 on Oct 9, 2020 and has also issued a notification regarding this. CBSE Sample Papers 2020-21 for tenth and twelfth are presently the most significant assets for the up and coming CBSE Board Exams 2021 readiness.With the new CBSE Making Scheme 2020-21, students will get a total thought regarding the method of composing good responses in the answer sheet. It also helps undoubtedly comprehending the significant points that must be written in answer books to score maximum marks.

You can download the Question Papers and Marking Scheme PDF files from here:

# JEE NEET PHYSICS MCQs (Set-5)

Topics Covered: Laws of Motion, Circular Motion

Q1: In a tug-of-war match, one team is pulling with a force of 500 N. If they are exactly balanced by the other team, then the tension in the rope is?

(a) 0
(b) 250 N
(c) 500 N
(d) 1000 N

Q2: A particle of mass 0.3 kg is subjected to a force F = kx with k= 15 N/m. What will be its initial acceleration if it is released from a point 20 cm away from the origin.

(a) 3 m/s²
(b) 15 m/s²
(c) 5m/s²
(d) 10 m/s²

# JEE NEET PHYSICS MCQs (Set-4)

Topics Covered: Vector Algebra, Motion in a Plane

Q1: If θ is the angle between two vectors, then the resultant vector is maximum when the value of θ is

(a) 0°
(b) 90°
(c) 180°
(d) Same in all cases.

Q2: The change in a vector may occur due to

(a) Rotation of the frame of reference
(b) Translation of frame of reference
(c) Rotation of vector
(d) Both a and b

Q3: Acceleration of a particle under projectile motion at the highest point of its trajectory is :

(a) g
(b) zero
(c) less than g
(d) dependent upon projection velocity

## PHYSICS MCQs (Set-3)

FOR JEE NEET Med/Engineering Entrance Examinations

Topics Covered: Kinematics (Motion in a Straight Line)

Q1: A particle starts from rest with uniform acceleration 'a' Its velocity after 'n' second is 'v'. The displacement in last two seconds is:

(a) 2v(n-1)/n
(b) v(n-1)/n
(c) v(n+1)/n
(d) 2v(2n+1)/n

Q2: A body starts from origin and moves along x-axis such that at any instant velocity is v = 4t³ - 2t. The acceleration of the particle when is it is 2m away from the origin is:

(a) 14 m/s²
(b) 18 m/s²
(c) 22 m/s²
(d) 32 m/s²

## JEE NEET PHYSICS MCQs (Set-2)

FOR NEET - IIT JEE and Other Engineering or premedical Entrance Examinations

Topics Covered: Units & Dimensions, Error in Measurement

Q1: Which of the following sets cannot enter into the list of fundamental quantities in any system of unit

(a) length, mass and velocity
(b) length, time and velocity
(c) mass, time and velocity
(d) length, time and mass

Q2: The base quantity among the following is:

(a) Speed
(b) Weight
(c) Length
(d) Area

## PHYSICS MCQs  (SET-1)

FOR NEET - IIT JEE and Other Engineering or premedical Entrance Examinations

Q1: A neutron with velocity v strikes a stationary deuterium atom, its kinetic energy changes by a factor of

(a) 15/16
(b) 1/2
(c) 2/1
(d) 8/9

Q2: AM radio band has carrier frequency from 500 kHz to 1500 kHz. Assuming a fixed inductance in a simple LC circuit, what is  ratio of highest capacitance to lowest capacitance required to cover this frequency range?

(a) 3
(b) 6
(c) 9
(d) 12

## CBSE Class 12 Sample Question Papers With Marking Scheme (2019-20)

CBSE has released sample question papers along with marking scheme based on the new curriculum. Sample Papers for Class 12 are taken into consideration as the best option to understand the question paper pattern very well.

Eduvictors provide collection of sample question papers prepared by various schools and institutes
that help you to practice and get familiar with the question paper pattern. Solving an ample variety of sample papers, together with the last years' pattern papers, has been the recommendation to students.

Here are links of SQPs and Marking Schemes for various subjects:

## Major Changes in CBSE Examination in 2020 For Class 10 and 12

CBSE has made some changes in the examination pattern for class 10 and 12 in the academic
session 2019-20.

As per the new exam pattern, CBSE has given more weight to the school-based/internal assessment.

Please watch the video to get the idea of important changes that would happen in CBSE Examination in 2020 i.e. for academic session 2019-20

## CBSE Class 12 - Physics Term-I Sample Question Paper (Set-1) (2019-20) (Poor Scan Quality)

Getting good marks is very important for students of class 12. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Physics subject to assess your knowledge about the subject.

For studying you may refer following help guides:

2.

## Physics Quiz for NEET, AIPM and JEE

MCQs

Q1: Wavelength of a LASER beam can be used as a standard of

(a) Time
(b) Temperature
(c) Angle
(d) Length

Q2: A mercury barometer is enclosed in a tall glass cylinder. What happens to the level of mercury if air is slowly removed from the enclosure by a vacuum pump? The level

(c) remains unchanged
(d) suddenly falls to zero

Q3: Which of the following is not a thermodynamic function?

(a) enthalpy
(b) work done
(c) internal energy
(d) Gibb's energy

## CBSE Class 12 - Physics Sample Question Paper + Solution- (2018-19)

Physics is a study of basic laws of nature and their manifestation in different natural phenomena. Physics is the study of physical world and matter and its motion through space and time, along with related concepts such as energy and force. The class 11 syllabus provides logical sequencing of the ‘Units’ of the subject matter with proper placement of concepts with their linkages for better understanding.

Here follows the class 12  Physics sample question paper along with marking scheme and answers helping you in your studies.

Class 12 Physics

## Dual Nature Of Radiation and Matter

Q1: Write the relationship of de-Broglie wavelength λ associated with a particle of mass m in terms of its kinetic energy K.

Answer: Kinetic Energy (K) = p²/2m
where p = momentum and m = mass.
∴ p = √2mK

∴ de-Broglie wavelength λ = h/p = h/ √2mK

Q2: Mention one physical process for the release of an electron from the surface of a metal?

Q3: Name an experiment which shows the wave nature of the electron. Which phenomenon was observed in this experiment using an electron beam?

Answer: Davisson-German experiment shows the wave nature of the electron. Phenomena of constructive interference were observed in the Davisson-Germer experiment.

Q4: What is Thermionic emission?

Answer: It is the phenomenon of emission of electrons from the metal surface when heated suitably.

## Physics Quiz (1 Word Answer)

Q1: Who firstly demonstrated experimentally the existence of electromagnetic wave?

Q2: The working of the quartz crystal in the watch is based on which effect?

Q3: What is the unit of Radioactivity?

Q4: What is the wavelength of the visible spectrum?

Q5: One astronomical unit is the average distance between___?

Q6: Number of basic S.I. units are ___.

Q7: What is the name of the scientist who stated that matter can be converted into energy?

Q8: The size of the atomic nucleus is of the order of___?

Q9: A temperature at which both the Fahrenheit and the centigrade scales have the same value?

## Saturday 6 October 2018

### Class 12 - Physics - ELECTROMAGNETIC WAVES AND OPTICS - About Electromagnetic Spectrum? (#cbsenotes)(#eduvictors)

Class 12 - Physics - ELECTROMAGNETIC WAVES AND OPTICS -