In which medium does the sound travel fatest?
Explain optical telescopes?
Which property of the rain coat makes it water proof?
Explain nuclear fission?
Why is mercury used in thermometers rather than water?
Explain interference?
Which properties of waves are independent of each other?
How we are getting light from electrical bulb?
What is the shadows?
What is fluorescence?
What is the difference between optical zoom, digital zoom and smart zoom?
What is the homogenous?
Mercury is a better barometric fluid than water because?
What is photometry?
Why is n-type conductor is neutral?