Read the following statements and select the correct one:- A) Coal petroleum and natural gas are fossil fuels. B) Coal and natural gas are exhaustible resources. C) Coke is used in the manufacture of steel. D) Fossil fuels are present in limited quantities.
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Answer:
Wave Number Definition
Explanation:
In physics, the wave number is also known as propagation number or angular wave number is defined as the number of wavelengths per unit distance the spacial wave frequency and is known as spatial frequency.
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Explanation:
C) Coal is used in the manufacture of steel
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