Explanation

Hydroelectric power is considered the cheapest and most environmentally friendly source of electricity.

As it utilizes the energy from flowing water without emitting greenhouse gases.

Explanation

Explanation

Unlike a gasoline engine (petrol engine),

a diesel engine doesn't use any spark plugs.

Diesel engines are also IC engines

In Diesel engines, there is no carburetor.

ND5-07-2023

Explanation

Wilhelm Conrad Rontgen discovered X-rays

He was discovered on 8 November 1895.

He got the Nobel Prize in Physics in 1901.

***

Additional questions

The penetrating power of X-rays depends on their frequency

Explanation

The theory of relativity usually encompasses two interrelated theories by Albert Einstein:

special relativity and general relativity, proposed and published in 1905 and 1915

E =mc2

 C in this equation Velocity of light

****

Principle of Theory of relativity

ND27122022