Thermionic emission questions | form four Physics

What particle are emitted in thermionic emission? Explain why they are emitted.

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UNSOLVED

The discharge of electrons from heated metal is known as _______

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(i) Define thermionic emission.
(ii) What is the function of metal rectifiers in battery chargers?

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UNSOLVED

Figure 5 shows a stationary wave, W obtained on the screen when an a.c voltage, V is connected to the Y plate of an Oscilloscope.

(i) What does part XY and the height, ‘b’ represents?
(ii) Briefly explain how the value of ‘b’ can be achieved.

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UNSOLVED

(i) Give four applications of X-rays in daily life activities.
(ii) Explain how X-rays are produced.

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UNSOLVED