Bihar STET Paper 2 Physics Mock Test - 5 - Bihar PGT/TGT/PRT MCQ

As the relative velocity of the satellite with respect to the earth is zero, it appears stationary from the Earth surface and therefore it is called is geostationary satellite or geosynchronous satellite.

BC and AC are in series

Now BA and DC are in parallel.

Fringe width is inversely proportional to the distance between slits so it will be doubled.

Explanation:Parallelogram law of vector addition is,If two vectors are considered to be the adjacent sides of a Parallelogram, then the resultant of two vectors is given by the vector which is a diagonal passing through the point of contact of two vectors.

Let the horizontal displacement of the plank, at an instant during its oscillation is x and its velocity is v.

For sustainable interference wavelengths have to be the same. So frequency has to be the same too. Contact phase relation is also necessary to sustain the interference pattern else the pattern will keep changing so rapidly that we will not see any pattern.
Equal intensity is not a requirement to keep pattern sustained.

Railway tracks are banked at curves to help the train negotiate the curve safely. The banking of the tracks ensures that the necessary centripetal force is provided by the horizontal component of the normal reaction force from the track. This reduces the reliance on friction between the train wheels and the track, allowing trains to travel safely around curves at higher speeds.

(b) Distance between the hostel and the station = 10 km = Displacement of the car

∴ Average velocity = 

Natural Frequency of an LC Oscillator

- The natural frequency of an LC oscillator is determined by the values of the inductance (L) and capacitance (C) in the circuit.

- The LC oscillator is a type of oscillator circuit that uses a combination of inductors and capacitors to generate oscillations at a specific frequency.

- The natural frequency of an LC oscillator can be calculated using the formula:

f = 1 / (2 * π * √(LC))
 

 Escape velocity does not depend on the angle of projection. Escape velocity will remain the same.
Hence, escape velocity is 11.2km/s .

Given peak potential is 200v
so, amplitude is 200
and frequency is 50Hz
so angular frequency is 2.πx50 = 314/sec
so the value is
E = 200sin(314t)
Hence option B is the correct answer.

The newton second (also newton-second, symbol N s or N.s) is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram metre per second (kg.m/s). One newton second corresponds to a one-newton force applied for one second.

A freely falling body observes a constant downwards force of gravity which hence applies a constant downward acceleration upon the body.

According to the question, there can be two cases in which the point mass is at a distance a from the surface of the spherical shell. 

1. The point mass is at the center of the shell

2. The point mass is outside the shell at a distance 2a from  the center of the shell.

Superposition principle dictates that the potential and field at any point will be the sum of the potentials and fields respectively at that point due to the individual masses.

It can be seen that in both the cases, neither field nor potential is zero inside the shell. This is due to the contribution of the point mass.

The electric field lines are perpendicular to the equipotential surface. The field lines can not intersect each other because the electric force can not have two directions at a point.

Diamagnetic materials have a small and negative value of magnetic susceptibility. Paramagnetic materials have a small and positive value of magnetic susceptibility and ferromagnetic materials have a large and positive value of magnetic susceptibility.

F = ma
[F] = kg m/s²

The direction of the induced current is as shown in the figure, according to Lenz’s law which states that the indeed current flows always in such a direction as to oppose the change which is giving rise to it.

NOTE : Electr o mag n et sh ould be amen abl e to magnetisation &  demagnetization.

∴ retentivity should be low & coercivity should be low

Teaching profession is a 'mission', rather than a job. A teacher may not find the affirmation of his/her career choice in salary, administrators or even the students whom he/she teaches, but he/she must believe in the uncanny ability of a good teacher to positively impact the future and to leave lasting, indelible marks on those who will one day be the leaders in all facets of society. It is this power in the hands of a teacher that translates to big responsibility. A teacher who realises these things is on a mission to empower, enable and to make a positive difference.

Inclusive Education means education for all children in school as It refers to the inclusion of all children in the education system, regardless of their differences and disabilities.

Key Points 

• It values the diversity, each child brings to the classroom and facilitates all with equal opportunities to learn and grow.
• Inclusive education improves the quality of and makes provisions for education for all. Inclusive education welcomes and celebrates diversity.
• It provides a provision to include disabled children along with normal children in a regular classroom environment.
• It refers to an education system that accommodates all children regardless of their physical, intellectual, social, emotional, linguistic, or other conditions.

Important Points 

Benefits of Inclusive Education include:

• Developing moral and ethical principles.
• Increasing communication and social skills.
• Increasing acceptance and appreciation of diversity.
• Fostering the potential of every child to grow and bloom.
• Addressing the diverse learning needs of every student.
• Valuing all learners equally and encouraging them to learn.
• Removing discrimination and providing adequate resources.
• Making adequate seating arrangements as per the child's requirement.

Hence, it could be concluded that at present the emphasis is on inclusive education. The objective behind inclusive education is Emphasis on Education of all Categories of learners.

Additional Information 

Basic Principles of Inclusive Education:

• Well-constructed educational plan.
• Use of multilingualism as a resource.
• Equity and equal opportunities for all.
• Use of specific pedagogical strategies.
• Sensitization towards individual differences.

The language acquired from birth by a child with the help of family members is known as First Language.

Language is a tool to communicate with the world. Considering the size of the world, there have been many civilizations in different parts of the world which have developed different languages.

• A first language is a language that a person has been exposed to from birth. The first language of a child is part of the personal, social, and cultural identity.
• The language that we learn from our childhood is usually spoken by our parents, family members, and the other people around us. This is known as our first language or L1.
• Since this is the language we know best and use commonly, the government decided that the medium of instruction at the primary stage should be one’s own regional language.
• The first language is acquired naturally, through interacting with family members and friends without much formal instruction.
• But even though, we may communicate effectively in our first language, many of us do not have complete knowledge of all the sounds and letters of the language or its grammar. This is because we acquire it informally. Therefore formal instruction in the first languages is provided in the School.

In case a teacher notices any activity that causes indiscipline in the class, he should immediately find out the cause of that activity and try to handle the issue with resourcefulness. By identifying the students creating nuisance, the teacher can counsel them, and eliminate their concerns.

A teacher needs to vary his/her pitch according to the situation. She may use a high or a low pitch. Intonation has been always considered an important aspect of communication. The positive intonation proved to have a dramatic effect on the learning rate of students. The students learn much faster when the vocal part of the message is positive than when it is neutral.

The naval forces of China, Iran, and Russia recently launched a joint exercise called the “Maritime Security Belt-2024” near the Gulf of Oman. The exercise, which began on March 11 and lasted until 15, is the fifth common military exercise between the three countries in recent years. The exercise aims to safeguard regional maritime security and strengthen maritime cooperation. The exercise is organized in three phases: harbor, sea, and summarize. The exercise focuses on anti-piracy and search and rescue training courses, and includes the participation of Russian warships and aviation.

Weight of the car = (180 × 7 – 72 × 6) = 828 kg
Hence, Option B is correct.

First Number x Second Number = HCF x LCM
Then, 75 x Second Number = 15 x 225
Second Number latex ={ 15 x 225}/75 = 45$
Therefore, other number is 45. 

Given:

x + y + 1 = 0

Concept Used:

(a + b )³ = a³ + b³ + 3ab (a + b)

Calculations:

x + y + 1 = 0

⇒ x + y = -1

Cubing on both sides we get

(x + y)³ = ( -1 )³

⇒ x³ + y³ + 3xy( x + y ) = -1

⇒ x³ + y³ + 3xy ( -1) = -1

∵ x + y = -1

⇒ x³ + y³ - 3xy = -1

∴ required value = -1