Bihar STET Paper 2 Physics Mock Test - 1 - Bihar PGT/TGT/PRT MCQ

Let the initial velocity of the body at point A is v, AB is 3 cm.

On penetrating 3 cm in a wooden block, let the body moves x distance from B to C.
For B to C:

Note: Here, it is assumed that retardation is uniform.

As there is no any external force acting between the two discs so according to law of conservation of angular momentum, we get
L= Iω
So, I1ω1 + I2ω2 = (I1 + I2) ω

Weight is a force caused by gravity. The weight of an object is the gravitational force between the object and the Earth. The more mass the object has the greater its weight will be. Weight is a force, so it's measured in newtons.

Electric flux = electric field intensity x area. The dimension of field intensity is [M L T^-3 I^-1] and the dimension of the area is [L²]. Therefore, the dimension of flux = [M L³ T^-3 I^-1]. This can also be justified as flux=potential x length. By putting the dimensions of potential and length, we can get the same result.

The unit for electromotive force is Volt.
EMF is numerically expressed as the number of Joules of energy given by the source divided by each Coulomb to enable a unit electric charge to move across the circuit.
Volts=Joules/Coulombs

India's first artificial satellite was Aryabhata. Launched by soviet union on 19  April 1975

In a series RLC circuit there becomes a frequency point were the inductive reactance of the inductor becomes equal in value to the capacitive reactance of the capacitor. In other words, XL = XC.
Series Resonance circuits are one of the most important circuits used electrical and electronic circuits.
 

Velocity of efflux when the hole is at depth h, v = √(2gh).
Rate of flow of water from square hole

Rate of flow of water from circular hole

According to problem

 

If M is the mass of the Earth and m is the mass of a sphere of radius r and you want the force of gravity to be the same at both the surface of the sphere and the surface of the earth then mg = Mg and m = M. This means that the mass of the sphere would have to be the same as the mass of the Earth no matter what r is. This is impossible since a sub-sphere cannot have the same mass as its parent.
For a sphere of radius r to have force g at its surface, d = (De *Re)/r where De is the density of the entire Earth and Re is the radius of the Earth, d is the density of the sphere of radius r. So there is a radius and a density which will produce a gravitational force of g for any d, r >0 but one cannot be a subset of another.

= d μ 1/r

Gamma rays are electromagnetic radiation (high-energy photons) with an extreme frequency and a high energy. They are created by the decay of nuclei as they travel from a high-energy state to a lower state; this process is called “gamma decay.” Most atomic responses are accompanied by gamma emission.

formula of flux is = BAcosθ

θ is angle between A and B

θ=30∘

ϕ=1×10⁻³wb

A=0.02 m²

angle between screen and B is 60∘

B = ϕ​/acos30 = 10^-3/ 2 x 10^-2 x cos√3/2 = 0.058T

I₁ = n x -(e) x A x V
I₂ = n x 2e x A x V/4
   = n x e x A x V/2
Total Current = I₁ + I₂ 
=nea(V/2) - (-neav) (Since both ions will move in opposite directions,  we subtract them)
Hence Current I= (neav/2) + neav
                          = 3/2neaV
 

Explanation:All collisions between molecules among themselves or between molecules and the walls are elastic. So that total kinetic energy and total momentum is conserved. Also the average properties of gas are remains constant.

► Electric field (E) = 26i - k
► A = 20k
Electric flux = electric field.area
= E.A
= (26i - k)*(20k)
= (26*0 -1)*20
= -20 units

Correct option is B.

Explanation:explanation none

From the conservation of energy, potential energy at height h = kinetic energy at the ground.
Therefore, at height h, PE of ball A, PE = m_Agh

At 0K temperature we know that there is no molecular motion, that is the KE of the particles gets 0. Thus we can say the combined KE of a gaseous system is zero, but as there combined mass cant be zero thus the combined of the square of velocities of the particles is zero, which means that the root mean square velocity of the gas is zero.

To have confidence that a test is valid, and thus the inferences we make based on the test scores are valid, three kinds of validity evidence are:

Construct- It is the extent to which the content of the test matches the instructional objectives.

Criterion- It is the extent to which scores on the test are in agreement with or predict an external criterion.

Content- It is the extent to which an assessment corresponds to other variables, as predicted by some rationale or theory.

Inclusive Education:

• Inclusive education is when all students, regardless of any challenges they may have, are placed in age-appropriate general education classes that are in their own neighbourhood schools to receive high-quality instruction, interventions and supports that enable them to meet success in the core curriculum.
• Inclusive education is a system in which children with and without disabilities learn and play together.

Objectives of Inclusive Education:

• To develop an individualized education program to impart personalized and need-based education systems and experiences to all students, abled, or disabled.
• To give appropriate vocational services to all students with disabilities and guide them towards their careers.
• To provide transition services and implement a post-secondary school plan for each student with a disability so that they can get help and adjust at higher levels of education.
• To give a coordinated and comprehensive instructional program for kindergarten through high school.

Conclusion:
Inclusive education is a process in way of thinking about how to be creative to make our schools a place where all children can participate in learning. Though there the children with disability can play, work and enjoy themselves with regular students, but its main motive is to help children with disability in learning. Hence, option (4) is correct.

Cooperation teaches the values of committing oneself to the common good, seeing success as depending on the efforts of all participants, feeling happy when others succeed, seeing others as resources to help one succeed, viewing worth as unconditional, and viewing diverse others in positive ways.
Cooperative learning is a teaching way for students to learn essential interpersonal life-skills and develop the ability to work collaboratively, a skill now greatly in demand in the workplace. Thus, it provides faster and efficient learning. In cooperative learning, the diverse students in the school are to be transformed into a symphony. Students need positive self-esteem, the psychological health to face conflict and challenge, and the social competencies required to work effectively with diverse peers. Personal and superordinate identities are developed through group processes.

Use of TV and video cassettes while teaching demonstrates that the teacher has good command over techniques of teaching.
Teaching is an art; but in a modern age, science has given us so many technologies, which can be used for teaching purpose and they are very helpful in explaining the concepts in a better way. A very good quality of a teacher is to use all these modern technologies for teaching.

The question 'What specialities of Einstein impressed you the most and why?' is most appropriate to evaluate the thought process of a student as it takes into consideration student's thinking. This makes students to choose from among multiple answers and hence they could be engaged in thinking rationally. The answers that come out are also subjective, unlike the direct questions, which fail to evaluate the thought process of students.

A teacher who changes the method of teaching according to the students and requirements is said to be research minded. This is a very good quality of a teacher by which he/she involves students by engaging them with different interests. A teacher who is always thinking about something may be introspecting but not research minded.

Lesson planning should be based on both, the needs of the learners and the process for evaluation to be followed. The content should be presented in such a way that it fulfils the student's academic needs. The process of the evaluation must be decided beforehand, so that the teacher understands how much learning has taken place. Different kinds of evaluation processes could be used, depending upon the learning objectives.

The Varuna naval exercise is a biennial exercise between the Indian Navy and the French Navy. The 21st edition of the exercise, Varuna-23, was held in the Arabian Sea in September 2023. Phase II of the exercise was held from September 6 to 9, 2023.

Side of the square = √144 = 12 cm

So the answer = π × 3 × 3 = 9π cm² 

Given: Neptune, Planet, Moon

The logic followed here is: Neptune is a Planet, but Moon is not. Moon is a natural satellite.

Hence, option (4)  is the correct answer.

1) 8, 4, 6, 1, 5, 3, 7, 2 

2) 7, 8, 3, 4, 5, 2, 6, 1

3) 3, 6, 1, 5, 4, 8, 2, 7

4) 7, 3, 6, 1, 5, 8, 4, 2

'RESIDENT' is a meaningful English word.

Hence, '7, 8, 3, 4, 5, 2, 6, 1' is the correct answer.