Which of the following are two widely known semiconductors?

The identification of transistors and diodes as two widely known semiconductors is accurate due to their fundamental roles in electronic circuits.

Transistors are essential components that act as switches or amplifiers in circuits. They control the flow of electrical current and form the basis of modern digital computing through their ability to switch on and off, allowing for binary (on/off) signaling which is critical in logic gates and processors.

Diodes, on the other hand, are used to allow current to flow in one direction while blocking it in the opposite direction. This property makes them vital for functions such as rectification, where alternating current (AC) is converted into direct current (DC), and for protecting circuits from reverse voltage.

These two components highlight the practical use of semiconductors in electronic devices and systems, demonstrating their critical roles in both analog and digital electronics. Their importance in the semiconductor industry roots back to their ability to manipulate electrical currents based on the properties of semiconductor materials like silicon, which can be doped to create P-type and N-type semiconductors.