HPSC PGT Physics Mock Test - 2 - HPSC TGT/PGT MCQ

The correct answer is The Supreme Court.

Key Points 

• The Supreme Court of India is called the custodian of the Constitution in India.
• The highest court in India, the Supreme Court is considered as the guardian of the Constitution.
• The conflicts or quarrels of jurisdiction between the central government and the state governments or between the legislature and the executive are decided by the court.
• It upholds and uplifts the rule of law and also ensures and protects citizens’ rights and liberties as given in the Constitution.
• Therefore, the Supreme Court is also known as the Guardian of the Constitution.​

Additional Information 

• The Indian constitution provides for a provision of the Supreme Court under Part V (The Union) and Chapter 6 (The Union Judiciary).
• The Supreme Court of India is the highest judicial court and the final court of appeal under the Constitution of India, the highest constitutional court, with the power of judicial review.
• India is a federal state and has a single and unified judicial system with a three-tier structure, i.e. Supreme Court, High Courts, and Subordinate Courts.

The correct answer is Soviet Union.

• The battle of Stalingrad held between the Soviet Union and Germany.
• The Soviet Union won the battle against Germany.
• The German army raced across the Russian plains, inflicting terrible casualties on the Red Army and the Soviet population.
• The Battle of Stalingrad was a brutal military campaign between Russian forces and  Nazi Germany and the Axis powers during World War II.
• February 1943, Russian troops had retaken Stalingrad and captured nearly 100,000 German soldiers, though pockets of resistance continued to fight in the city until early March.

Additional Information

• The capture of Stalingrad was important to Hitler for two primary reasons:
  • ​It was a major industrial city on the Volga River.
  • Its capture would secure the left flank of the German armies as they advanced into the oil-rich Caucasus region with the goal of cutting off fuel to Stalin’s war machine.
• The Soviet generals Aleksandr Vasilyevskiy and Georgy Zhukov, responsible for planning in the Stalingrad area, concentrated massive Soviet forces in the steppes to the north and south of the city.

Manganese is one of the important raw materials used for smelting iron ore.

Important Points

• Manganese is used for making alloys.
• It is used in manufacturing of enamel, dry cell batteries, plastics, chemicals and glasses.
• It requires almost 10 kg of manganese to manufacture one tonne of steel.
• Odisha is the largest producer of manganese in India with multiple mines located over the iron ore belt of India.
• Some of the major mines are Bonai, Kendujhar, Sundergarh, Gangpur, Koraput, Kalahandi, and Bolanger.
• After Odisha, Karnataka, Maharashtra, Telangana, Goa, and Jharkhand lies in the list of manganese producer in India.
• In 2000-2001, Odisha produced one-third of the country's total production.

Thus, we can conclude that Odisha is the largest producer of manganese.

The correct answer is Sharafabad.

• Bahadurgarh was founded by Rathi Jats and was formerly known as Sharafabad.
  • ​Bahadurgarh is a city and a municipal council with 31 wards in the Jhajjar district in the state of Haryana.
  • It is called the "Gateway to Haryana".

Key Points

• Bahadurgarh was founded by the Mughal Emperor Alamgir II and gave the city in jagir to Bahadur Khan and Tej Khan, the Baloch rulers of Farrukhnagar in 1754, who changed its name from Sharafabad to Bahadurgarh.
• Jhajjar is one of the 21 districts of Haryana state, India.
  • Jhajjar district, Haryana was carved out of Rohtak district on July 15, 1997. 

Preparing the family tree using the following symbols:

On decoding L θ Z β T means L is the mother of Z and Z is the sister of T.

i) L is mother of T → True
ii) L is father of T → False (as L is mother of T) 
iii) T is father of L → False (as T is either son or daughter of L)
iv) Z is daughter of T → False (as Z is sister of T)
Hence, 'L is mother of T' is the correct answer.

NEP 2020 recommends the use of the mother tongue or local language as the medium of instruction for foundational education.

Socialization is an important process for the functioning and continuation of society. It is a process of learning the rules, habits, and values of a group to which a person belongs whether it is family, friends, colleagues, or any other group.

Animals solve problems by understanding – like human beings, instead of going through either the trial and error process or stimulus response association. In this case, learning took place by insight. Learning by insight involves finding a solution to the problem by thinking over the problem and understanding the various aspects of the problematic situation.
Insight learning refers to the sudden realisation of the solution of any problem without repeated trials or continuous practices. To further elaborate on its definition, insight learning is the type of learning in which one draws on previous experience and also seems to involve a new way of perceiving logical and cause-and-effect relationship.

Eddy current when produced it causes damping heat loss energy loss but it don't produce any type of sparking because the electrons are only at the surface of the conductor and the electrons do not jump off to enter the air and heat it. 

As the plane is frictionless, thus there will be only slipping and no rolling. So, for all of them acceleration will be ‘gsinθ’

Explanation : The coil of galvanometer is wound on a light metal frame. When the coil and frame rotate in the field of the permanent magnet, the eddy current set up in the frame oppose the motion so that the coil returns to zero quickly.

The answer provided in the forum is wrong,the correct answer would be option A,B,C,D.
Solution:
Current is constant across the cross-section.
E ∝1/A ;     r∝1/A
=>i2r∝1/A
∴heat at Q>heat a P.
∴A,B,C,D are correct.

Stable equilibrium is attained when potential energy of the dipole system is minimum which is possible at an inclination of 0°.

Potential = high potential - low potential
so our high potential is 90V and low potential is 10V,
potential = 90-(-10)=100V

When a diamagnetic material is placed in an external magnetic field the spin motion of electrons is so modified that the electrons which produce the moments in the direction of the external field show down while the electrons which produce magnetic moments in opposite directions get accelerated.
Thus, a net magnetic moment is induced in the opposite direction of the applied magnetic field. Hence the substance is magnetized opposite of the external field. Thus, it moves from stronger. Weaker parts of the magnetic.
 

Explanation:By convention phasor diagrams are made to show the rotation of phasor in counterclockwise direction with constant speed

We know, the gravitational force 
,
This is valid when R is the centre to centre distance between the two masses M and m.
At a distance r < R, the mass of Earth cannot be taken as M.

The new mass (M'):
The mass of earth will be contained for a radius r. Let us assume that the mean density of the earth is ρ and that earth is a sphere with a radius equal to the distance r. We know, mass = density × volume

Therefore the gravitational force, F = 

Hence the gravitational force, F ∝ r

Second law of motion gives:

Electric field due to a charged ring in given by: -
at point p
∣​E∣​= KQx​ /(R²+x²)^3/2        Q =λ(2πr)
at a large distance, x≫R, so :- R2+x2≃x2
⇒∣​E∣​= K&x​/(x²)^3/2=KQ/x²​=Eαx⁻²
so at a large distance, the ring behaves as a point particle.

There are three rules for determining how many significant figures are in a number: 

• Non-zero digits are always significant.
• Any zeros between two significant digits are significant.
• A final zero or trailing zeros in the decimal portion ONLY are significant.

Keeping these rules in mind, we can say that there are 4 significant digits.

∵ V = (4/3)πr³
% error is volume = 3 × error in radius = 3 × 1 = 3%

Area under F-t curve = change in momentum = 2 x (-2) + 1 x 4 = -4 + 4 = 0  

The aperture of an astronomical telescope is defined as the diameter of the objective lens.
In telescopes since the stars are very far away from us and emit light intensities, we need a large aperture to increase the amount of light entering the telescope thereby increasing the resolution.

In 9s, the distance travelled = 4A × 3 = 12A 

Imagine, now it is at

The Measurement of a given quantity is essentially an act or result of comparison between a quantity whose magnitude (amount) is unknown, with a similar quantity whose magnitude (amount) is known, the latter quantity being called a Standard.

Since mud or putty have no gross tendency to regain their previous shape & they get permanently deformed, they are close to ideal plastics.

1. Perfectly plastic bodies are those that retain their distorted shape or size after external pressures applied to them have been released.
2. Partially elastic bodies are those that partially return to their former shape or size when external forces are eliminated.
3. The shape or size of mud or putty is now altered when force is applied, and the body does not return to its original state when the force is removed. Only perfectly plastic bodies, as already established, exhibit this feature.
4. Additionally, many elasticity moduli types are used to measure elasticity.
5. The ratio of stress to strain given to a body under various variations in dimension is what makes up an elastic modulus.
6. Young's Modulus, Shear Modulus, and Bulk Modulus are the three forms of elastic moduli. Since Young's modulus or longitudinal stress by strain for mud or putty is almost zero, they are theoretically proven to be almost ideal plastic bodies.

Hence, putty or mud is an example of a perfectly plastic body.

Net electric flux (Φ_Net) through the cubic surface is given by,

Where, ∈₀ = Permittivity of free space

= 8.854 × 10⁻¹² N⁻¹C² m⁻²

q = Net charge contained inside the cube = 2.0 μC = 2 × 10⁻⁶ C

∴

= 2.2 × 10⁵ N m² C⁻¹

The net electric flux through the surface is 2.2 ×10⁵ N m²C⁻¹.

Let θ angle between string and horizontal, T is tension in string

Explanation:A displacement is vector that is the shortest path length from the initial to the final position of the body. It is not always eqaul to path length. It can be zero and -ve also.