Atoms Test - 34...

How can the brightness of the pattern on the screen of cathode ray tube be changed?

If a nucleus such as $$^{226}Ra$$, that is initially at rest, undergoes $$\alpha-decay$$, then which of the following statement is true?

The angular momentum of an electron in an orbit is quantized because it is a necessary condition for the compatibility with

Mark out the incorrect statement :

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. State the approximate potential difference applied between the anode and filament.

the anode is kept at positive potential with respect to the cathode.

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. State the amount of charge on each particle.

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. State the approximate voltage $$V_1$$ used to heat the filament.

Diagram shows an electron gun inside a cathode ray tube. Which of the following is true?

In a cathode ray tube, the screen is coated with fluorescent material.