What is the difference between a lens and a mirror?
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Tell me why is n-type conductor is neutral?
Explain real and virtual image?
Tell me why does a tilted gyroscope not fall?
What is a galvanometer?
In which medium does the sound travel fatest?
Explain the Vapour pressure ?
What is the direction of null vector?
What is the weight of automotive oil?
A color made from the addition of two primary colors is called:
define rectilinear propagation of light?
Is there god and what is the difference between energy in space and so called goddly energy
Explain the Sound ?