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Explanation:
- In liquids and gases,heat transfer takes place by convection..
- A kitchen utensil is a small hand tool used for food.(Aluminium,Copper,Iron,lead,Stainless steel)are used in preparation of utensils..
- As said before liquids transfer heat by convection....
- The transfer of heat by radiation does not require any medium.....
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The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. The word telescope now refers to a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors.
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