COMPLETE CHEMISTRY| महा मैराथन | MCQ|SHORT|LONG| मिलेंगे 4 मार्च के पेपर वाले प्रश्न

It is possible to take a high quality photograph of a very fast moving object by illuminating the object for quite a small fraction of a second. You may have come across photographs of a bullet penetrating a banana or an apple in many text books or magazines. This is called 'stop action' photography because the fast moving object travels a very short distance during the time of illumination. Harold Edgerton, the inventor of stroboscope, was a pioneer of this kind of photography. A normal photographic plate works properly if it receives an energy of 4J during the exposure. To release this energy in a very small fraction of time, huge amount of power is required. Such huge power can not be generated directly from a battery because of its high internal resistance. To produce such power a capacitor is used. The time in which a capacitor discharges can be very short. Although, theoretically it would take a long time for a capacitor to discharge completely, it discharges almost completely in about 10 time constant. Consider the following situation A capacitor of 200muF storing 4J energy is made to discharge through a flash light in 2ms. This setup is used to take the picture of a bullet moving at a speed of 100m//s Assume that the flash light acts as a resistor and there is no other resistance in the circuit. What is the order of energy delivered to the flash light in 0.2 ms(approx).

It is possible to take a high quality photograph of a very fast moving object by illuminating the object for quite a small fraction of a second. You may have come across photographs of a bullet penetrating a banana or an apple in many text books or magazines. This is called 'stop action' photography because the fast moving object travels a very short distance during the time of illumination. Harold Edgerton, the inventor of stroboscope, was a pioneer of this kind of photography. A normal photographic plate works properly if it receives an energy of 4J during the exposure. To release this energy in a very small fraction of time, huge amount of power is required. Such huge power can not be generated directly from a battery because of its high internal resistance. To produce such power a capacitor is used. The time in which a capacitor discharges can be very short. Although, theoretically it would take a long time for a capacitor to discharge completely, it discharges almost completely in about 10 time constant. Consider the following situation A capacitor of 200muF storing 4J energy is made to discharge through a flash light in 2ms. This setup is used to take the picture of a bullet moving at a speed of 100m//s Assume that the flash light acts as a resistor and there is no other resistance in the circuit. What is the initial current in the circuit

It is possible to take a high quality photograph of a very fast moving object by illuminating the object for quite a small fraction of a second. You may have come across photographs of a bullet penetrating a banana or an apple in many text books or magazines. This is called 'stop action' photography because the fast moving object travels a very short distance during the time of illumination. Harold Edgerton, the inventor of stroboscope, was a pioneer of this kind of photography. A normal photographic plate works properly if it receives an energy of 4J during the exposure. To release this energy in a very small fraction of time, huge amount of power is required. Such huge power can not be generated directly from a battery because of its high internal resistance. To produce such power a capacitor is used. The time in which a capacitor discharges can be very short. Although, theoretically it would take a long time for a capacitor to discharge completely, it discharges almost completely in about 10 time constant. Consider the following situation A capacitor of 200muF storing 4J energy is made to discharge through a flash light in 2ms. This setup is used to take the picture of a bullet moving at a speed of 100m//s Assume that the flash light acts as a resistor and there is no other resistance in the circuit. If we use a lens of power 10 diopters, the lens to photographic plate distance is 15cm and the bullet moves perpendicular to the principal axis, what is the distance covered by bullet as seen on photographic plate.

The Alaska pipeline starts at the frozen edge of the Arctic Occan. It stretches southward across the largest and northernmost state in the United States . ending at a remote icefree seaport Village nearly 800 miles from where it begins . It is massive in size and extremely. complicated to operate. The steel pipe crosses windswept planins and endless miles of delicate tundra that tops the frozen ground . It weaves through crooked canyons , climbs sheer monuments , plunges over rocky crags , makes its way through thick forest , and passes over or under hundreds of rivers and streams . The pipe is 4 feet in diameter, and up to 2 million barrels (or 84 million gallons ) of crude oil can be pumped through it daily. Resting on H - Shaped steel racks called" bents". long sections of the pipeline follow a zigzag course high above the frozen earth . Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline's up and down route is determined by the often harsh demands of the arctic and subarctic climate , the tortuous lay of the land , and the varied composition of soil, rock, or permafrost ( permanently frozen ground) . A little more than half of the pipeline is elevated above the ground. The remainder is buried anywhere from 3 to 12 feet , depending largely upon the type of terrain and the properties of of the soil. One of the largest in the world , the pipeline cost approximately $8 billion and is by far the biggest and most expensive construction project ever undertaken by private industry. In fact , no single business could raise that much money , so 8 major oil companies , formed a consortium in order to share the costs. Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline construction fund according to the size of its holdings. Today, despite enormous problems of climate, supply short - age , equipment breakdowns , labour disagreements , terrain, a certain amount of mismanagement , and even theft , the Alaska pipeline has been completed and is operating. The Alaskan pipeline ends

The Alaska pipeline starts at the frozen edge of the Arctic Occan. It stretches southward across the largest and northernmost state in the United States . ending at a remote icefree seaport Village nearly 800 miles from where it begins . It is massive in size and extremely. complicated to operate. The steel pipe crosses windswept planins and endless miles of delicate tundra that tops the frozen ground . It weaves through crooked canyons , climbs sheer monuments , plunges over rocky crags , makes its way through thick forest , and passes over or under hundreds of rivers and streams . The pipe is 4 feet in diameter, and up to 2 million barrels (or 84 million gallons ) of crude oil can be pumped through it daily. Resting on H - Shaped steel racks called" bents". long sections of the pipeline follow a zigzag course high above the frozen earth . Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline's up and down route is determined by the often harsh demands of the arctic and subarctic climate , the tortuous lay of the land , and the varied composition of soil, rock, or permafrost ( permanently frozen ground) . A little more than half of the pipeline is elevated above the ground. The remainder is buried anywhere from 3 to 12 feet , depending largely upon the type of terrain and the properties of of the soil. One of the largest in the world , the pipeline cost approximately $8 billion and is by far the biggest and most expensive construction project ever undertaken by private industry. In fact , no single business could raise that much money , so 8 major oil companies , formed a consortium in order to share the costs. Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline construction fund according to the size of its holdings. Today, despite enormous problems of climate, supply short - age , equipment breakdowns , labour disagreements , terrain, a certain amount of mismanagement , and even theft , the Alaska pipeline has been completed and is operating. What is the capacity of the Alaskan pipeline ?

The Alaska pipeline starts at the frozen edge of the Arctic Occan. It stretches southward across the largest and northernmost state in the United States . ending at a remote icefree seaport Village nearly 800 miles from where it begins . It is massive in size and extremely. complicated to operate. The steel pipe crosses windswept planins and endless miles of delicate tundra that tops the frozen ground . It weaves through crooked canyons , climbs sheer monuments , plunges over rocky crags , makes its way through thick forest , and passes over or under hundreds of rivers and streams . The pipe is 4 feet in diameter, and up to 2 million barrels (or 84 million gallons ) of crude oil can be pumped through it daily. Resting on H - Shaped steel racks called" bents". long sections of the pipeline follow a zigzag course high above the frozen earth . Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline's up and down route is determined by the often harsh demands of the arctic and subarctic climate , the tortuous lay of the land , and the varied composition of soil, rock, or permafrost ( permanently frozen ground) . A little more than half of the pipeline is elevated above the ground. The remainder is buried anywhere from 3 to 12 feet , depending largely upon the type of terrain and the properties of of the soil. One of the largest in the world , the pipeline cost approximately $8 billion and is by far the biggest and most expensive construction project ever undertaken by private industry. In fact , no single business could raise that much money , so 8 major oil companies , formed a consortium in order to share the costs. Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline construction fund according to the size of its holdings. Today, despite enormous problems of climate, supply short - age , equipment breakdowns , labour disagreements , terrain, a certain amount of mismanagement , and even theft , the Alaska pipeline has been completed and is operating. What are ''bents'' ?

The Alaska pipeline starts at the frozen edge of the Arctic Occan. It stretches southward across the largest and northernmost state in the United States . ending at a remote icefree seaport Village nearly 800 miles from where it begins . It is massive in size and extremely. complicated to operate. The steel pipe crosses windswept planins and endless miles of delicate tundra that tops the frozen ground . It weaves through crooked canyons , climbs sheer monuments , plunges over rocky crags , makes its way through thick forest , and passes over or under hundreds of rivers and streams . The pipe is 4 feet in diameter, and up to 2 million barrels (or 84 million gallons ) of crude oil can be pumped through it daily. Resting on H - Shaped steel racks called" bents". long sections of the pipeline follow a zigzag course high above the frozen earth . Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline's up and down route is determined by the often harsh demands of the arctic and subarctic climate , the tortuous lay of the land , and the varied composition of soil, rock, or permafrost ( permanently frozen ground) . A little more than half of the pipeline is elevated above the ground. The remainder is buried anywhere from 3 to 12 feet , depending largely upon the type of terrain and the properties of of the soil. One of the largest in the world , the pipeline cost approximately $8 billion and is by far the biggest and most expensive construction project ever undertaken by private industry. In fact , no single business could raise that much money , so 8 major oil companies , formed a consortium in order to share the costs. Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline construction fund according to the size of its holdings. Today, despite enormous problems of climate, supply short - age , equipment breakdowns , labour disagreements , terrain, a certain amount of mismanagement , and even theft , the Alaska pipeline has been completed and is operating. How was the fund for pipeline construction generated ?

The Alaska pipeline starts at the frozen edge of the Arctic Occan. It stretches southward across the largest and northernmost state in the United States . ending at a remote icefree seaport Village nearly 800 miles from where it begins . It is massive in size and extremely. complicated to operate. The steel pipe crosses windswept planins and endless miles of delicate tundra that tops the frozen ground . It weaves through crooked canyons , climbs sheer monuments , plunges over rocky crags , makes its way through thick forest , and passes over or under hundreds of rivers and streams . The pipe is 4 feet in diameter, and up to 2 million barrels (or 84 million gallons ) of crude oil can be pumped through it daily. Resting on H - Shaped steel racks called" bents". long sections of the pipeline follow a zigzag course high above the frozen earth . Other long sections drop out of sight beneath spongy or rocky ground and return to the surface later on. The pattern of the pipeline's up and down route is determined by the often harsh demands of the arctic and subarctic climate , the tortuous lay of the land , and the varied composition of soil, rock, or permafrost ( permanently frozen ground) . A little more than half of the pipeline is elevated above the ground. The remainder is buried anywhere from 3 to 12 feet , depending largely upon the type of terrain and the properties of of the soil. One of the largest in the world , the pipeline cost approximately $8 billion and is by far the biggest and most expensive construction project ever undertaken by private industry. In fact , no single business could raise that much money , so 8 major oil companies , formed a consortium in order to share the costs. Each company controlled oil rights to particular shares of land in the oil fields and paid into the pipeline construction fund according to the size of its holdings. Today, despite enormous problems of climate, supply short - age , equipment breakdowns , labour disagreements , terrain, a certain amount of mismanagement , and even theft , the Alaska pipeline has been completed and is operating. Which of the following were not problems faced while constructing the pipeline ?

Read the following information and five statements given below it carefully and answer the question which follow : Fortunately, more and more countries are shifting their focus away from industrial development to control of climate these days. A. The countries which focus more on controlling climate changes than industrial development. B. Many countries had once prioritised industrial development which proved to be harmful to the environment in the long run. C. Some experts are of the view that climate changes is not as alarming an issue as it is made to be because it is a natural phenomenon and has been occurring regularly throughout the history of earth. D. If climate changes continues at the present rate, it would bring in large-scale destruction to human habitation in a very short time. E. Industrial development is one of the biggest but definitely not the reason behind global warming. Which of the following can be inferred from statement (E) if it is considered to be true with regard to the given information 1) Nations also need to focus on sources other than those generated due to industrial development. 2) Other sources of pollution have more adverse effects as compared to those generated due to industrial development. 3) Unlike older times, industrial development has ceased to be a reason behind global warming these days. 4) If industrial development stops, global warming would automatically come to an end. 5) If sources other than industrial development are identified and controlled, global warming will end completely.