Explain the working of a venturimeter.

Explain the working of LED.

Explain the working of a refrigerator with energy flow diagram?

Explain the working of an atomizer.

Explain the working of an ink dropper.

Explain the working ventury tube.

Explain the working of a heat engine.

Explain the working of an n-p-n transistor?

Explain the working of a syringe used by children when they play with coloured water.

Study the figure and answer the following question: Explain the working of the above telescope.

Answer the following questions : With a neat labelled diagram , explain the working of a refracting telescope .