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 D. Answer in brief. 1. Who became the governor of Bengal in 1772? Answer:  In   1772 , Warren Hastings   was   appointed as the Governor-General of Fort William in Bengal which ended the title of   Governor of Bengal . 2. What was Nana Saheb's grievance against the British? Answer:  The British refused to accept Nana Saheb, the adopted son of the last Peshwa Baji Rao II, as the ruler of the Maratha and was refused to get the pension that his father was getting. 3. What was the doctrine of lapse? Ans:  The Doctrine of Lapse: According to this, when an Indian ruler dies without having an heir to rule after him, then that state under the policy of annexation(take over) will merge with the British rule. This rule was introduced by  Governor-General Lord Dalhousie. 4. Explain the term 'dastak'. Answer:  Dastak, in 18th-century Bengal,   a permit exempting European traders , mostly of the British East India Company, from paying customs o...

  EXPLANATION WITH QUESTIONS AND ANSWERS https://www.youtube.com/watch?v=6J48IfN2ics Question 1. How Macavity does outwit the world’s top investigation agencies? Answer: Whenever investigation agencies reached the spot of crime, Macavity is not present there. He also didn’t leave any clue of him. These agencies were not able to found any sign of Macavity. Therefore, he outwitted the world’s top investigation agencies. Question 2. What is the most remarkable thing about Macavity? Answer: Macavity, known as the Mystery cat has defied all laws. He even defies the law of gravity. He possesses supernatural powers which allow him to levitate up in the air. He is so confident in his manner that whenever the crime is discovered, Macavity disappears without leaving a single trace. Question 3. Describe Macavity. Answer: Macavity is a tall and thin ginger cat whose eyebrows are deep with lines. He has sunken eyes which gives him a devil look. His coat is untidy and his whiskers are uncombed. ...

  1) Describe the types of Mechanical Energy with an example and state the SI unit and formula? Ans:  It is said that work is done when an object whenever a force acts upon it to displace. Work involves a force through which an object can be displaced. When the work is done upon the object then it will gain energy. The energy acquired by an object on which work is done is known as its mechanical energy.  Mechanical Energy Formula Mechanical energy is generally defined as the sum of kinetic energy and potential energy in an object. It is accumulated due to performing some particular work. In other words, we can describe the energy of an object because of its motion or position, or sometimes both. We know that potential energy is possessed by the object due to its position. It is because to place some object at some height, some work will be done. Also, kinetic energy is possessed by an object due to work done by it for its movement. When an object is moving, then its ...

 Pythagoras Theorem  1. Proof:  The Pythagoras theorem states that if a triangle is right-angled (90 degrees), then the square of the  hypotenuse  is equal to the  sum  of the squares of the other two sides.  Go through the video to understand  https://www.youtube.com/watch?v=H2_XjNAgmKU