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A lot of Heat energy and Light energy is given off by which of the following?

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Important Questions on Work, Power and Energy

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Where should an object be placed in front of a convex lens to obtain a real image of the same size of the object?
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Electric motor converts:
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Plastics are used for making handles of the utensils as they _____.
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A feather weighing 5 g and a nail weighing 10 g have same kinetic energy. Which of the following statement is true about the momentum of the two bodies?
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Which of the following commonly used fuels has maximum calorific value?
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SONAR is used for _____.
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Petroleum products have energy in the form of
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Which of the following is an example of stored energy?
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Which of the following is not a type of mechanical energy?
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The kinetic energy of a particle of mass m and linear momentum p will be _____.
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Plastics are used for making handles of the utensils as they _____.
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In which of the following units is the calorific value of fuels generally expressed?
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In which of the following units is the calorific value of fuels generally expressed?
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Which of the following is not a nuclear power station of India?
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Identify the incorrect statements:
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How many nuclear power plants are in India?
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Photoelectric cell is a device which converts _____.
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Aman keeps a plastic bottle, a wooden spoon and a metallic spoon in a closed room overnight. The room temperature is 30°C. In the morning, he records the temperatures of the three objects as T1, T2 and T3. Which of the following most likely represents the relation between them?
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Which of the following is not a by-product of petroleum?
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The region of the space where the light from the source does not reach and hence, is the darkest is called _____.