HPSC PGT Physics Mock Test - 7 - HPSC TGT/PGT MCQ

The correct answer is Khwaja Moinuddin Chishti.

Key Points

• Khwaja Moinuddin Chishti came to India in 1192 CE and afterwards, he started the Sufi sect in India.
• After visiting many places in India, he settled permanently in Ajmer.
• The tomb of Khwaja Moinuddin Chishti in Ajmer is known as Ajmer Sharif’.
• His disciples or devotees recall him by the names of ‘Khwaja Sahib’ or ‘Garib Nawaz’.
• Chishti sect considers music as the important source of displaying love for God. 

Thus, we can conclude that the Sufi sect was started by Khwaja Moinuddin Chishti.

Additional Information

• Baba Farid was a Sunni Muslim and was one of the founding fathers of the Chishti Sufi order.
• Shaikh Nuruddin, also known as Nund Rishi was a Kashmiri Sufi saint, mystic, poet and Islamic preacher. Nund Reshi was among the founders of the Rishi order, a Sufi tradition of the region.
• Amir Khusro was an Indo-Persian Sufi singer, musician, poet and scholar who lived under the Delhi Sultanate. He was an iconic figure in the cultural history of the Indian subcontinent.

The correct answer is Mercury.

• Mercury planet is the closest planet to the Sun.

​Key Points

• Mercury:
  • The smallest planet in our solar system
  • It is nearest to the Sun.
  • It's only slightly larger than Earth's Moon.

The correct answer is ​Sirajudaula.

Key Points

Battle of Plassey -

• It is a battle fought between the East India Company force headed by Robert Clive and Siraj-Ud-Daulah (Nawab of Bengal).
• The rampant misuse by EIC officials of trade privileges annoyed Siraj.
• The continuing misconduct by EIC against Siraj-Ud-Daulah led to the battle of Plassey in 1757.
• In 1757, when Sirajudaula was defeated in the Battle of Plassey, East India Company decided to build a new fort, one that could not be easily attacked.
• Hence the correct answer is option 3.
• Calcutta had grown from three villages called Sutanati, Kolkata and Govindapur.
• The Company cleared a site in the southernmost village of Govindapur and the traders and weavers living there were asked to move out.
• Around the new Fort William, they left a vast open space which came to be locally known as the Maidan or garer-math.

Additional Information

•  
• Mir Qasim Nawab of Bengal was defeated in the Battle of Buxar.
• Mir Jafar became the Nawab of Bengal after the Battle of Plassey, he gave the British to become the Nawab.

The correct answer is Neeraj Chopra.

Key Points

• Haryana Chief Minister Manohar Lal Khattar announced that a stadium will be built in Olympic gold-medallist Neeraj Chopra's native village in Panipat.
  • Neeraj Chopra is a Javelin throw player.
  • Javelin thrower Neeraj Chopra's native village Khandra is in Panipat.
  • A stadium would be built in Neeraj Chopra's village for ₹10 crores.

Additional Information

GIVEN:

The average of 40 numbers = 25

CONCEPT:

Basic Average concept.

FORMULA USED:

Average = Sum of all numbers/Total numbers

CALCULATION:

Sum of numbers = 40 × 25 = 1000

23, 25 and 41 are mistakenly written as 32, 52 and 15 respectively.

⇒ Change in sum = (23 + 25 + 41) – (32 + 52 + 15)

= 89 – 99

= -10

Actual sum of numbers will be 10 less.

⇒ Sum of numbers = 1000 – 10 = 990

∴ Correct average = 990/40 = 24.75

NEP 2020 emphasizes the role of teachers in promoting critical thinking, creativity, and holistic development of students.

Change in behaviour is the common sign of a child in stress. A child in stress shows aggressive behaviour and acts irritably.

Let t1 and t2 be the time taken for Jagadeesh to go to school and then back home. If s is the displacement, then

Total time taken

Total displacement=2 s

It is because when we make a group of electrons inside the material it is called domain. So when we apply an external magnetic field on the material. Those domains start to align themselves in the direction of the magnetic field. BUT NOT ALL DOMAINS ALIGN THEMSELVES IN THAT DIRECTION. So option D is correct.

Fundamental quantities are those which cannot be defined in terms of other quantities.

• Length and time are independent and can be considered fundamental.
• Velocity depends on both length and time, so it cannot be fundamental.
• Thus, length, time, and mass are suitable as fundamental quantities.

Velocity cannot be a fundamental quantity because it is derived from length and time.

We know that,
C_p=c_v+R
E=3Rt/2
also,
E=C_v
c_p=R+3RT/2
=5/2 RT
=2.5R

∴ Amplitude is 0.4 m and motion is SHM.

The equivalent resistance of the group of resistances is R.
case 1:
a resistance r(say) is connected in parallel to the group, its new equivalent resistance R₁ is
R₁​=Rr/R+r​
hence, R₁​<R.
case 2:
a resistance r is connected in series to the group, its new equivalent resistance R₂ is
R₂​=R+r
hence, R₂​>R.

KEY CONCEPT : Use Fleming's left hand rule. We find that a force is acting in the radially outward direction throughout the circumference of the conducting loop.

From this graph we can see that there is a straight line, so, uniform motion initial velocity = 2/2 = 1 and final velocity = -2/2 = -1 and we know that impulse = change in momentum = Pf - Pi = -0.4 - 0.4 = 0.8

Intensity of magnetisation : It represents the extent to which a specimen is magnetised when placed in a magnetising field. Or in other words the intensity of magnetisation of a magnetic material is defined as the magnetic moment per unit volume of the material. 

It indicates how the sample affected by magnetic field when placed in it.

M = Magnetic moment/volume = μM / V

unit SI : M= Amp.metre^-1

Stress is the force per unit area experienced by the body and strength is the ability to withstand the stress. When stress becomes greater than strength, accidents happen.

Moment of inertia about its centroidal axis has a minimum value as the centroidal axis has mass evenly distributed around it thereby providing minimum resistance to rotation as compared to any other axis. Also the statement-2 is correct but is not the correct explanation for statement-1.

To find the height above the Earth's surface where the gravitational acceleration is one-fourth of its value at the surface, we can use the formula for gravitational acceleration:

Thus, the height at which the gravitational acceleration is one-fourth of that at the Earth's surface is R_e. 

In electrical engineering, admittance is a measure of how easily a circuit or device will allow a current to flow. It is defined as the reciprocal of impedance, analogous to how conductance & resistance are defined. The SI unit of admittance is the siemens (symbol S); the older, synonymous unit is mho, and its symbol is ℧ (an upside-down uppercase omega Ω). Oliver Heaviside coined the term admittance in December 1887. 
Admittance is defined as
Y=1/Z
where
Y is the admittance, measured in siemens
Z is the impedance, measured in ohms
 

Newton's law of cooling states that the heat released by a body with respect to time (or) the rate of heat released is directly proportional to the difference between the body's temperature and the surrounding temperature. 
dH/dt = k(T – Ts) where t = surrounding's temperature and T = temperature of the body 
Consider two bodies A and B, of equal surface areas, such that A's temperature is more that B's temperature and the surrounding temperature is less than both A and B. Then according to Newton's law of cooling A loses more heat to the surroundings when compared B during the same time interval. So, A will cool faster than B.

• It is induced EMF of periodic EMI, So formula is:

​​​​​​​

Here w is angular speed.

Explanation:A will become positive with respect to B because current  indused is in clockwise direction

We know that magnitude of bulk modulus
K=[P/(dV/V)]
Now, percentage change in volume is. 10^-3 %
Therefore, (dV/V)x100=10^-3
So, dV/V=10^-5
Hence, k is,
K=40atm/10^-5=40x1.01x10⁵ /10^-5 =4.04x10¹¹ N/m² 

Capacitive reactance (symbol XC) is a measure of a capacitor’s opposition to AC (alternating current). Like resistance it is measured in ohms, but reactance is more complex than resistance because its value depends on the frequency (f) of the signal passing through the capacitor. Reactance is also inversely proportional to the value of capacitance (C), i.e. the value of XC at any frequency will be less in larger capacitors than in smaller ones. All capacitors have infinitely high values of reactance at 0Hz, but in large capacitors, the reactance falls to a low level at much lower frequencies than in smaller capacitors. Hence, larger capacitors are preferred in low frequency applications.

Ship 2 gets hit first. The time of flight only depends on the y-component of motion, not the x-component.  The higher you throw something up in the air, the more time it spends in the air.  It can also be shown from equation-

y=v_0y t – ½ g t²=0  

    v_0y for projectile μ1 is greater than for μ2.

From the law of conservation of mechanical energy, the potential energy of a body at height h is converted into kinetic energy when it falls down. So, the magnitude of kinetic energy just before hitting the ground is equal to the potential energy at height h which is mgh.

 Suppose the angle between the transmission axes of the analyser and the polarizer is θ. The completely plane polarized light form the polarizer is incident on the analyser. If E₀ is the amplitude of the electric vector transmitted by the polarizer, then intensity I₀ of the light incident on the analyser is
I ∞ E₀²
 
The electric field vector E₀ can be resolved into two rectangular components i.e E₀ cosθ and E₀ sinθ. The analyzer will transmit only the component ( i.e E₀ cosθ ) which is parallel to its transmission axis. However, the component E₀sinθ will be absorbed by the analyser. Therefore, the intensity I of light transmitted by the analyzer is,
 
I ∞ ( E₀ x cosθ )²
 
I / I₀ = ( E₀ x cosθ )² / E₀² = cos2θ
 
I = I₀ x cos²θ
when light passes from polarizer it's intensity becomes half and when passed through analyser it becomes,
I = I₀ x cos²θ/2
 

The direction of these circular magnetic lines is dependent upon the direction of current. The density of the induced magnetic field is directly proportional to the magnitude of the current. Direction of the circular magnetic field lines can be given by Maxwell's right hand grip rule or Right handed cork screw rule.