Questions

Shortest of all the days is observed on Decenber 22

On December 4, 1971, the Indian Navy successfully executed Operation Trident, which was a devastating attack on Pakistan Naval Headquarters in Karachi. The operation, which marked the first use of anti-ship missiles in the region, did irreparable damage to the Karachi port during the 1971 Indo-Pak war. To commemorate this, December 4 is celebrated as the Indian Navy Day.

Every year to celebrate the achievements and role of the naval force to the country we clebrate Navy Day. The Indian Navy is the marine branch of the Indian Armed Forces and is led by the President of India as Commander-in-Chief.

Beats means the periodic increase and decrease in loudness heard when two notes of nearly the same frequency are sounded simultaneously.

Light travels Faster than Sound.

Light :

1. Light doesn't require a medium to travel.

2. It travels in the vaccum with the speed of 1,86,000 miles per second.

Sound:

1. Sound rquire a medium.

2. It travels in the Air with the speed of 340 meters per second.

3. It travels Faster in Water than in Air.

4. It travels Faster in Steel than in Water. 

Kinetic Energy K.E = 12mV2  or 

K.E ∝V2, Where 'm' is the mass and 'v' is the velocity of molecules.

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

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