PH | MCQs

Explanation

Michael Faraday proposed the laws of electromagnetic induction in the year 1831.

Faraday's law or the law of electromagnetic induction is the observation or results of the experiments conducted by Faraday.

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RY 15-01-2023

Explanation

Gamma rays have the highest penetrating power among these particles.

Due to their lack of mass and charge.

It allowing them to pass through most materials.

Explanation

Sea water, water that makes up the oceans and seas, covering more than 70 percent of Earth's surface.

Explanation

Magnetic flux linked (Φ) is proportional to the number of turns in the coil.

Doubling the number of turns doubles the total flux linked, assuming the magnetic field and area remain the same.

Explanation

Explanation

The kinetic molecular theory states that gases are made up of small particles called molecules.

These molecules are in constant random motion and collide with each other and the container walls.

Explanation

Ablutophobia is the fear of bathing or washing.

It is a specific phobia where individuals experience anxiety related to personal hygiene activities.

Explanation

Unlike poles of different magnets attract each other; like poles repel each other.

 property of a magnet:

Like poles of the magnets i.e. north-north and south-south repel each other 

unlike poles of the magnets i.e. north-south and south-north attract each other.

Explanation

Power of a Lens= 1/focal length

Explanation