An object has a mass of 6 kg and velocity of 10 m/s. The speed is measured with 5% accuracy, then find out Δx in m…

A ball of mass 0.5kg is moving with velocity 6.626 m/s. What’s the wavelength of that ball?

Thomson discovered that every substance in this universe is made up of ____ from his experiments.

Which of the following statements you think is wrong regarding α particle scattering effect?

Pick out electron’s charge to mass ratio’s value from the options.

The below process of filling electrons in an orbital follows ______

The energy of 1st orbit in a hydrogen atom ______

Gravitational force = Gm1m2/r2.