NVS PGT Physics Mock Test - 9 - NVS TGT/PGT MCQ

The correct answer is Robert Clive.

Key Points

When Alivardi Khan died in 1756, Sirajuddaulah became the nawab of Bengal.

• The Company was worried about his power and keen on a puppet ruler who would willingly give trade concessions and other privileges.
• So it tried, though without success, to help one of Sirajuddaulah’s rivals become the nawab.
• An infuriated Sirajuddaulah asked the Company to stop meddling in the political affairs of his dominion, stop fortification, and pay the revenues.
• After negotiations failed, the Nawab marched with 30,000 soldiers to the English factory at Kassimbazar, captured the Company officials, locked the warehouse, disarmed all Englishmen, and blockaded English ships.
• Then he marched to Calcutta to establish control over the Company’s fort there.

Important Points

• On hearing the news of the fall of Calcutta, Company officials in Madras sent forces under the command of Robert Clive, reinforced by naval fleets.
• Prolonged negotiations with the Nawab followed.
• Finally, in 1757, Robert Clive led the Company’s army against Sirajuddaulah at Plassey. 
• The Battle of Plassey became famous because it was the first major victory the Company won in India.

Thus, it is clear that Robert Clive led the company's army against Sirajudallah at Plassey.

Additional Information

• James Mill was a famous economist and political philosopher from Scotland.
• The Permanent Settlement of Bengal was brought into effect by the East India Company headed by Governor-General Lord Cornwallis in 1793.
• Lord Dalhousie devised a policy that came to be known as the Doctrine of Lapse.

Preparing the family tree using the following symbols:

A possible tree diagram will be:

Praveena’s father’s sister’s mother is the grandmother of Sandhya.

Hence, "Grandmother" is the correct answer.

As per the given information;

Distance between S and P = √(PQ² + QS²)
SP = √(6² + 8²)
SP = √(36 + 64)
SP = √100
SP = 10 km
Hence, S is 10 km in South-East with respect to P.

The word that can be prefixed to make the following new words is ‘Mis’.

Mis + Interpret = Misinterpret

Mis + Behave = Misbehave

Mis + Understand = Misunderstand

Mis + Take = Mistake

Hence, the correct answer is ‘Mis’.

Ascending order:
686,   719,   765,   795,   815,   822,   835

Middle Number

Middle digit of 795 is 9.

The pattern followed is:

Top right number = multiplication of top left number and bottom number 

In fig 1:

729 = 81 × 9

729 = 729

In fig 2:

512 = 64 × 8

512 = 512

Similarly,

In fig 3:

? = 49 × 7

? = 343 

Hence, the correct answer is "343".

Using a search engine, you can look for:
A: Articles, Stories, and News
- When using a search engine, you can search for articles, stories, and news related to a specific topic.
- The search engine will provide a list of relevant articles, stories, and news sources that match your search query.
- You can read these articles and stay updated on the latest news and stories from around the world.
B: Images and Videos
- Search engines also allow you to search for images and videos related to a particular topic.
- You can enter keywords or phrases in the search engine and it will provide you with a variety of images and videos that match your search query.
- This is particularly useful when you are looking for visual content to support your research or to find entertainment.
C: Games, Websites, and Software
- Another use of search engines is to find games, websites, and software.
- You can search for online games, websites related to a specific topic, or software programs that you need.
- The search engine will provide you with relevant results that match your search query, allowing you to explore and find what you are looking for.
D: All of these
- Search engines provide a comprehensive tool for finding various types of content on the internet.
- You can search for articles, stories, news, images, videos, games, websites, and software all in one place.
- By using a search engine, you can access a vast amount of information and resources, making it an invaluable tool for research, learning, and entertainment.
In conclusion, search engines offer a wide range of options for finding different types of content such as articles, stories, news, images, videos, games, websites, and software. Whether you are looking for information, visuals, or entertainment, using a search engine can help you find what you need quickly and efficiently.

In education, teaching is the concerted sharing of knowledge and experience, which is usually organized within a discipline and, more generally, the provision of stimulus to the psychological and intellectual growth of a person by another person or artifact. The steps are in the following order:
(iv) Formulating instructional objectives
(i) Relate the present knowledge with previous one
(v) Presentation of instructional materials
(ii) Evaluation
(iii) Reteaching

The term 'micro teaching' was coined by Dwight Allen of the Stanford University. This is an innovative teacher training technique and focuses on developing teaching skills. This is highly individualised training skill. Micro teaching can also be defined as a teaching technique especially used in teachers' pre-service education to train them systematically by allowing them to experiment main teacher behaviours. By the help of this technique, teacher candidates can experiment and learn each of the teaching skills by breaking them into smaller parts and without encountering chaotic environment of the crowded classes.
In the original process, a teacher is asked to prepare a short lesson (usually 20 minutes) for a small group of learners who may not have been his/her own students. This is then recorded on video. After the lesson, the teacher, teaching colleagues, a master teacher and the students together view the video recording and comment on what they see happening, referencing the teacher's learning objectives. Watching the video and getting comments from colleagues and students provide teachers with an often intense "under the microscope" view of their teaching.

A knowledge survey is a method of evaluating the delivery of a course through the gathering of feedback from the learner on the level of the knowledge they acquired after the completion of the instruction. It usually consists of questions that cover the content of the course. The surveys evaluate student learning and content mastery at all levels: from basic knowledge and comprehension through higher levels of thinking. Knowledge surveys can serve as both formative and summative assessment tools.

This is because for maximum diffraction the slit width always equals to the wavelength of light.

The Particle Model of emission and absorption is based on the idea that light is composed of discrete particles called photons, and these photons carry quantized energy. This model helps us understand how atoms and molecules interact with light by either emitting or absorbing photons during electronic transitions.

Let the radius of curvature of the convex lens are denoted as
For a convex lens
R₁=+40cm [As it is towards right]
R₂=-40cm [As it is towards left]
The refractive index of the lens [µ]=1.5
Let f is the focal length of the lens.
From lens maker's formula we know that –
1/f=[µ-1] [1/R₁-1/R₂]
1/f=[1.5-1][1/40-(1/-40)]
1/f=0.5 x (2/40)
1/f=1/40
f=40cm
Hence, the focal length of the lens is 40 cm.

We know that dq = dU + dW
And as dU =  60 and dq = 140J
We get dW = 140 - 60 = 80J

Unit is the reference used as the standard measurement of a physical quantity.

• The unit in which the fundamental quantities are measured are called fundamental unit.
• Units used to measure derived quantities are called derived units.

R=1W
X_L=1000W
X_C=1000W
Z= Z= √ (R²+(X_L-X_C)²)
  =√(1²+(1000-1000)²)
Z=1W
    I=V/Z=100/1
I=1000A
 

Φ= hνλ => 2eV= 6.626 x 10^-34 x ν

2 x 1.6 x 10^-19= 6.626 x 10^-34 x ν

On solving we get ν = 4.6 x 10¹⁴ Hz.

Given:

Let two balls A and B have mass m_A, m_B respectively, and their initial velocities are u_A and u_B. After the collision, they will move with the same velocity, v_o. 

Given that mass of both balls are same.

So  m_A = m_B = m

u_A = V,  u_B = 0

From the Concept of Momentum Conservation:

m_Au_A + m_Bu_B = (m+m)v_o

mV = 2mv_o

v_o = V/2

Both the balls after impact will move with velocity v/2.

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.

Electric field at a distance r,
(r₀ < r < 2r₀) from the center is given by

Potential at the outer surface,

∴ If V is the required potential at r  = 3r₀/2,

A temperature gradient is a physical quantity that describes in which direction and at what rate the temperature changes the most rapidly around a particular location.
The temperature gradient is a dimensional quantity expressed in units of degrees per unit length.
The SI unit is kelvin per meter.
Expression: ∆T/∆x, where ∆T = change in temperature and ∆x = change in distance

Every point on a wave-front may be considered a source of secondary spherical wavelets which spread out in the forward direction at the speed of light. The new wave-front is the tangential surface to all of these secondary wavelets.

According to Huygens' principle, a plane light wave propagates though free space at the speed of light, c. The light rays associated with this wave-front propagate in straight-lines. It is also fairly straightforward to account for the laws of reflection and refraction using Huygens' principle.

In case of semiconductor Resistivity∝1​/temperature
In this case as temperature increases electrons jump to conduction band resistance decreases R∝ρ(Resistivity) so resistivity also decreases and current increases.
Vibration of electrons increases with rise in temperature and hence collision between ions and electrons increases with temperature.

In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency (amplitude may be different).
As c be the speed of light which is constant.
Using, c=νλ
Now same ν gives same λ. for the two light sources.
Example: y₁​=A₁​sinwt  and y_2​=A₂​sin(wt+ϕ) where ϕ is constant.

Progressive education advocates that young learners should be given the freedom to learn according to their preferences and likes

A realist is a person who analyses every problem on real and factual terms.
Example- The world today requires realist leaders more than anything else.

शब्द जब वाक्य में प्रयुक्त होने की योग्यता प्राप्त करता है; तो पद कहलाता है।Key Points

• जब कोई शब्द व्याकरण के नियमो, प्रत्यय, उपसर्ग,वचन,लिंग,कारक,पुरुष आदि में बंधकर किसी वाक्य मे प्रयुक्त होता है तो वह शब्द स्वतंत्र शब्द न रहकर पद बन जाता है।
• उदाहरण - ईश्वर रक्षा करे, इसमें ईश्वर शब्द पद है।

Additional Information

सही उत्तर मिश्र वाक्य है।

Key Points

• जहाँ गंगा, यमुना बहती है, वह देश उपजाऊ है। मिश्र वाक्य है।
• जिस वाक्य में एक प्रधान उपवाक्य तथा एक या एक से अधिक आश्रित उपवाक्य हों उसे मिश्र वाक्य कहते हैं।
• मिश्र वाक्य के सभी उपवाक्य योजक शब्दों से प्रारंभ हों तो वाक्य का अंतिम उपवाक्य प्रधान उपवाक्य तथा शेष सभी उपवाक्य आश्रित उपवाक्य होंगे।
  • उदाहरण- मेरा दृढ़ विश्वास है कि भारत जीतेगा।
  • सफल वही होता है जो परिश्रम करता है।

Additional Information

सही उत्तर 'मेरा यह सोचना, सही निकला' है।

• मेरा यह सोचना कि लोकेश प्रतिभाशाली छात्र है, सही निकला। इस वाक्य में ‘मेरा यह सोचना’ 'सही निकला' प्रधान उपवाक्य है।
• किसी वाक्य में जो उपवाक्य किसी पर आश्रित नहीं होता अर्थात् स्वतंत्र होता है एवम् उसकी क्रिया मुख्य होती है, वह मुख्य या प्रधान उपवाक्य कहलाता है।
• जैसे – मोदी जी ने कहा कि अच्छे दिन आएँगे।
• इस वाक्य में ‘मोदी जी ने कहा’प्रधान उपवाक्य है।

Key Points

• उपवाक्य: ऐसा पदसमूह, जिसका अपना अर्थ हो, जो एक वाक्य का भाग हो और जिसमें उदेश्य और विधेय हों, उपवाक्य कहलाता हैं।
• उपवाक्यों के आरम्भ में अधिकतर कि, जिससे, ताकि, जो, जितना, ज्यों-त्यों, चूँकि, क्योंकि, यदि, यद्यपि, जब, जहाँ इत्यादि होते हैं।
• उपवाक्य दो तरह के होते हैं – प्रधान उपवाक्य, आश्रित उपवाक्य।
• आश्रित उपवाक्य: दूसरे उपवाक्य पर आश्रित होता है।
• आश्रित उपवाक्य क्योंकि, कि, यदि, जो, आदि से आरंभ होते हैं।
• जैसे –मोदी जी ने कहा कि अच्छे दिन आएँगे।
• इस वाक्य में "कि अच्छे दिन आएँगे।" आश्रित उपवाक्य है क्योंकि यह उपवाक्य "मोदी जी ने कहा" उपवाक्य पर आश्रित है।

'राम ने आसानी से शिव-धनुष तोड़ दिया'- वाक्य है- विधानवाचक वाक्य

Key Points

• विधानवाचक- ऐसे वाक्य जिनसे किसी काम के होने या किसी के अस्तित्व का बोध हो। इन्हें विधिवाचक वाक्य भी कहते हैं।

उदाहरण-

• ममता ने खाना खा लिया।
• हिंदी हमारी राष्ट्रभाषा है।

Additional Information