Bihar PGT Physics Mock Test - 10 - Bihar PGT/TGT/PRT MCQ

The correct option is Option 3, i.e., ‘equanimity’.
The sentence talks about how the wife of President Madison could remain calm during an invasion as well. This ability of ‘remaining calm and composed in a difficult situation’ is what is meant by ‘equanimity’. Therefore, the correct answer is Option 3.

A person who is considered a hot-head is someone who easily becomes angry and violent.
A bonehead is a term used for a stupid person. 
An egghead is someone who is an intellectual.
Pundit is sometimes used for an expert in a particular subject or field who is frequently called upon to give their opinions to the public.
Hence, the correct answer is option 2.

जिस समास में दोनों पद प्रधान हो तथा विग्रह करने पर उनके बीच ‘तथा’, ‘या’, ‘अथवा’, ‘एवं’ या ‘और’ का प्रयोग होता हो। जैसे– अन्न और जल = अन्न-जल, अपना और पराया = अपना - पराया।

"उक्ति व्यक्ति प्रकरण" प्रचलित  व्याकरण ग्रंथ है। 

उक्ति-व्यक्ति-प्रकरण, दामोदर शर्मा द्वारा रचित हिंदी व्याकरण का पहला ग्रंथ है। हिन्दी व्याकरण के इतिहास में इसका महत्त्वपूर्ण स्थान है। इसका रचना काल 12वीं शती का पूर्वार्द्ध माना जाता है।

यह टिप्पणी विद्यापति के संदर्भ में आचार्य रामचन्द्र शुक्ल ने अपनी पुस्तक हिंदी साहित्य का इतिहास में लिखी है। विद्यापति हिंदी साहित्य के आदिकाल के कवि हैं। श्रृंगार रस के प्रमुख कवि हैं। मैथिली, संस्कृत, अवहट्ट इनकी रचना हैं I हिन्दी साहित्य में कृष्णगीति परम्परा के प्रवर्तक हैं।

‘अनुबंध’ शब्द में ‘अनु’ उपसर्ग का प्रयोग किया गया है। और शेष सभी में ‘अप’ उपसर्ग का प्रयोग हुआ है।

The family chart is as follows:

i) A is brother of B
ii) B is brother of C
iii) C is husband of D
iv) E is father of A
Drawing the family tree as per the given information:

Thus we can see D is the Daughter - in - law of E.
Hence, the correct answer is "Daughter - in - law".

The correct answer is ​Nilgiri.

Key Points

• Nilgiri Biosphere Reserve
  • The name ’Nilgiris’ with literary meaning ‘blue mountains’ has originated from the blue flower-clad mountains of the Nilgiris plateau within the State of Tamil Nadu.
  • It was the first biosphere reserve in India established in the year 1986. Hence, Option 2 is correct.
  • The total area of the Nilgiri Biosphere Reserve is 5,520 sq. km.
  • It is located in the Western Ghats and encompasses parts of Tamil Nadu, Kerala, and Karnataka.
  • The confluence of Biotic zones: It exemplifies the tropical forest biome which portrays the confluence of Afro-tropical and Indo-Malayan biotic zones of the world.
  • Many of the major tributaries of the river Cauvery like the Bhavani, Moyar, Kabini, and other rivers like Chaliyar, Punampuzha, etc., have their source and catchment areas within the reserve boundary.
  • Tribal groups like the Todas, Kotas, Irullas, Kurumbas, Paniyas, Adiyans, Edanadan Chettis, Cholanaickens, Allar, Malayan, etc., are native to the reserve.
  • The Mudumalai Wildlife Sanctuary, Wayanad Wildlife Sanctuary, Bandipur National Park, Nagarhole National Park, Mukurthi National Park, and Silent Valley are the protected areas present within this reserve.

Additional Information

• Sundarbans
  • It is a mangrove area in the delta formed by the confluence of the Ganges, Brahmaputra, and Meghna Rivers in the Bay of Bengal.
  • It spans from the Hooghly River in India's state of West Bengal to the Baleswar River in Bangladesh's division of Khulna.
• The Nanda Devi National Park or Nanda Devi Biosphere Reserve
  • It was established in 1982.
  • In the year 1988, Nanda Devi National Park and its surrounding area were declared as Biosphere Reserve under the MAB programme of UNESCO.
  • It is a national park situated around the peak of Nanda Devi in Chamoli Garhwal district of Uttarakhand, in northern India.
  • The entire park lies at an elevation of more than 3,500 m above mean sea level.
• The Pachmarhi Biosphere Reserve
  • It is a non-use conservation area and biosphere reserve in the Satpura Range of Madhya Pradesh state in central India.
  • The conservation area was created in 1999 by the Indian government. It also contains animals from the Himalayan peaks and the lower western ghats.

The correct answer is Kathmandu (Nepal)

Key Points

• SAARC is South Asian Association for Regional Cooperation, which is a regional intergovernmental organisation.
• It was founded on 8 December 1985 in Dhaka.
• It aims to promote the development of economic and regional integration.
• It is headquartered in Kathmandu, Nepal.
• The South Asian Free Trade Area was launched on 1st January 2006 to create a free trade zone between its members.
• As of March 2020 Esala Ruwan Weerakoon is the Secretary-General. He assumed office on 1st March 2020.

Additional Information

• Given below is the list of all members of SAARC:
  • Afghanistan
  • Bangladesh
  • Bhutan
  • India
  • Maldives
  • Nepal
  • Pakistan
  • Sri Lanka

The correct answer is KC Wheare.

Key Points

• Federalism can be formed by way of integration (US) or disintegration (Canada). 
• Indian federalism resembles “CANADIAN MODEL”.
• The word federalism is nowhere mentioned in the Indian Constitution. 
• Article 1 describes India as a UNION of states.
• It is not a result of an agreement between states and states have no right to secede from the federation. 
• It’s an Indestructible union of destructible states.
• KC Wheare described it as “Quasi federalism”.
• Granville Austin called it “Cooperative federalism” (need for national integrity and unity).
• Morris Jones defined it as 'Bargaining Federalism'.
• 'Federalism with Centralizing tendency' by Ivor Jenning.
• Unitary bias (dominance of centre in financial powers, central grants, Niti Aayog).

Important Points

• In SR Bommai case SC characterized “Federalism” as part of “Basic structure”.

The correct answer is the Iranian Rial.

Confusion Points
The Parliament of Iran has decided to change its currency from Rial to Toman. But, the decision has not been implemented yet. Thus, currently, Rial is the official currency of Iran.

Additional Information

About Iran

Like most stars, the sun is made up mostly of hydrogen and helium atoms in a plasma state. The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons.

KE = f/2 KT

As there is no horizontal acceleration is present in oblique projection horizontal component of velocity is constant

Explanation:The induced EMF is expected to be constant in the case of a rectangular loop. In case of a circular loop, the rate of change of area of the loop during the passage out of the field region is not constant, whereas it is constant for rectangular loop.

At null point (and along the axis), earth's magnetic field and bar's magnetic field are opposite in direction.
On the equatorial line, the bar's magnetic field is opposite in direction to its field on the axis. Hence, on the equatorial line, the two fields add up.
As the null points are on the axis of the bar magnet, therefore,
B1= (μ0/4π)(2M/d3)=H
On the equatorial line of magnet at same distance(d), field due to the magnet is 
B2= (μ0/4π)(M/d3)=B1/2=H/2
Therefore, total magnetic field at this point on equatorial line is 
B=B2+H=3H/2=3×0.36G/2=0.54G
 

Distance between the slits, d=0.28×10−3 m

Distance between the slits and the screen, D=1.4m

Distance between the central fringe and the fourth (n=4) fringe, 

u=1.2×10−2 m

In case of a constructive interference, we have the relation for the distance between the two fringes as:

u=nλD/d

⇒λ=ud/nD=6×10−7m=600nm

Since, P_r​=P_b​ 
r for red and b for blue.
P_r​=P_b​
or, n_r​× (hc/λr)  ​=nb​× (hc​/λ_b)​
or,  ​(n_r/n_b)​​= λ_r​​/λ_b ​
Since, the wavelength of red bulb is greater than the wavelength of blue bulb.
or,  n_r​>n_b

Two sources are coherent if the waves they emit have the same wavelength and maintain a constant phase difference, ϕ. If the constant phase difference. ϕ, is zero, the two sources are said to be in phase.

As the particles are moving at the same rate, their speed is the same but velocities will be different beacuse their directions will be different.

Statement-1: Potential difference across the terminals of a battery is always less than its emf.

• This statement is true. The potential difference across the terminals of a battery (V) is given by V=emf−Ir,  where III is the current and r is the internal resistance of the battery. Because Ir is always positive when there is a current, the terminal potential difference is always less than the emf.

Statement-2: A battery always has some internal resistance.

• This statement is true. All real batteries have some internal resistance, which is inherent in the materials and construction of the battery.

Since the internal resistance of the battery causes a voltage drop (Ir) when current flows, this is why the potential difference across the terminals is less than the emf, making Statement-2 a correct explanation for Statement-1. Thus, the correct answer is: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

In the Geiger-Marsden experiment very small deflection of the beam was expected because positive charge and the negative electrons are distributed through the whole atom reducing electric field inside the atom.

The body is at rest on the inclined plane, as μ > tan θ  force of friction = mg sin 30^o = 2 x 9.8 x (1/2) = 9.8 N  

Atoms with one less valence electron result in "p-type" material. These p-type materials are group III elements in the periodic table. Therefore, p-type material has only 3 valence electrons with which to interact with silicon atoms.

Correct Answer :- d

Explanation : a) A topological sort of a directed acyclic graph (DAG) is any ordering m1, m2, …, mn of the nodes

of the graph, such that if mimj is an edge then mi appears before mj . Any topological sort of a

the dependency graph gives a valid evaluation order for the semantic rules. 

b) The parse tree can be annotated with synthesized or inherited attributes. The parse tree can also be indicated with an arrow mark to indicate the manner in which the value gets propagated between the nodes of the parse tree. This graph is called as dependency graph as it indicates the dependency between nodes for deriving the values. This graph is an acyclic graph which doesn’t have a cycle. The presence of a cycle indicates that the graph is incorrect as the dependence of nodes for deriving values cannot be predicted. Edges in the dependence graph show the evaluation order for attribute values and thus the graph is a directed one.