Explain what is the ray of light?
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Why ate the mirage effects produced over hot deserts ?
What is centrifugal force?
Who first detected radio waves?
What is the avarege speed of people fencing like at the olympic games. (sorry for the misspelled words)
What is third law of thermodynamics?
sound frequencies below 16 hertz are usually referred to by scientists as:
What is the difference between optical zoom, digital zoom and smart zoom?
What is cardiac output?
What is the difference between free electron theory and band theory of solids?
Will a dc motor actually produce voltage if it is spun in reverse?
What is black body ?
The light in vehicle become dim when it is starting,why?