Explanation

• The question asks for the planet with the shortest rotation period, which means the planet that rotates the fastest.
• Jupiter is the correct answer as it rotates the fastest among the given options with a period of 9.9 Earth hours.
• Mercury has a longer rotation period than Jupiter, while Mars has a similar rotation period to Earth.
• Venus has the slowest rotation period among the given options.

Additional Information

• Mercury: It has a rotation period of 58.6 Earth days, which is longer than its orbit around the sun.
• Jupiter: It has a rotation period of 9.9 Earth hours, making it the fastest rotating planet in our solar system.
• Mars: It has a rotation period of 24.6 Earth hours, which is similar to Earth's rotation period.
• Venus: It has a rotation period of 243 Earth days, making it the slowest rotating planet in our solar system.

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.

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Additional questions

The penetrating power of X-rays depends on their frequency