Which is correct relation

Which one is correct relation for thermionic emission

Which is the correct relation between glucose and mannose?

Which of the following is correct relation of stability?

Which is the correct relation for forbidden energy gap in conductor, semi conductor and insulator

Which of the following is correct relations a symmetrical distribution is

Which of the following is correct relations a symmetrical distribution is

The sum of two roots of x^2 - px + q = 0 is thrice of their difference. Then which is the correct relation ____

Which is the correct relation between de- Brogile wavelength of an electron in the n^(th) Bohr orbit and radius of the orbit R?

According to Bohr's principle, which is the correct relation between principle quantum number (n) and radius of orbit (r ) ?