Structure of At...

If threshold wavelength for ejection of electron from metal is 300nm, then work function for photoelectric emission is

The mass of one mole of electron is

For the electronic transition from n = 2 to n = 1 which one of the following will produce shortest wave length?

For a certain particle, it is found that uncertainty 1840 in velocity is reciprocal of uncertainty in position This implies that

For particles having same KE., the de-broglie wavelength is

Which of the expression given below gives IE of H atoms in terms of Rydberg’s constant (R_H)?

If numerical value of mass and velocity are equal then de-Broglie wave length in terms of K.E. is

If uncertainty in position and velocity are equal then uncertainty in momentum will be

How fast an electron is moving if it has a wavelength equal to the distance it travel in one second?

If uncertainties in the measurement of position and momentum are equal, the uncertainty in the measurement of velocity is