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Sri Lanka received this aircraft at the special event held in Air Force Base, Katunayake by India on 15th of August, 2022. It was received by Navy and Air Force personnel of Sri Lanka who also received training in India for close to four months to operate the aircraft.
A sound with a single frequency is called a:
What happens to your weight when you are in a lift which goes down?
Which one of these is not a property of conservative force?
A body of mass 3 kg is acted upon by two perpendicular forces 9 N and 12 N. Find the resultant of two forces and the acceleration of the body.
The polarization of electromagnetic waves demonstrates that they are:
The pitch of a sound is determined by its:
Which of the following scientific discoveries was made by C.V Raman?
Decibel is used to measure the ___________.
The heat required to raise the temperature of 1 kg of water by 1°C is called:
In an experimental arrangement of a Fresnel's biprism, monochromatic light of wavelength 2. is used to produce interference fringe pattern. On introduc...