Is it possible to place a satellite, so that it is always over New Delhi? Why?

Why is it not possible to see an atom with naked eyes?

is it possible to open a pen cap with one finger? Why?

Is it possible to have an elements with atomic number 1.5 placed between hydrogen and helium?

In a transistor emitter is always forward biased. Why?

Is it possible to have length and velocity both as fundamental quantities? Why?

Why is it possible to write on rough blackboard with chalk ?

Why it is not possible to measure the voltage of an isolated reduction half reaction or the potential of a single electrode?

Write the truth values of the followings: (ix) Guwahati is a village harr New Delhi is a city