Explain what is a positron?
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When a green colored object is illuminated by a green light it will appear as what color to the human eye?
What is soda water ?
What is non metals ?
what is the principle used in electromagnetic spectrum?and why there is a necessary of having an electron with unpaired spins?and how the uncertainity principle is used to determine the frequency of an spectral lines ?
How can it be proved that the window glass id colored ?
Describe the Periscope?
Why are morning and evening less warm than noons ?
How is specific gravity defined?
How are amps and watts related?
Explain what is free fall acceleration?
Explain what is the opaque?
What is Pressure ?