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Q. Heat transfer by conduction occurs when molecules
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Q. Which one of the following is not a chemical change?
Q. Speed of sound in air is unaffected by change in:
Q. Liquids and gases never show
Q. Mach number is used in connection with the speed of
Q. When a strong beam of light is passed through a colloidal solution, the light will
Q. When a body is negatively charged by friction, it means that
Q. Which type of battery is used in world’s first fully electric cargo ship launched by China?
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