The 2019 IAAF World Athletics Championships was the 17th edition of the biennial, global athletics competition organized by the International Association of Athletics Federations (IAAF) will be held between 27 September and 6 October 2019 in ______.
It will be held in Doha, Qatar from 27 September and 6 October 2019.
A larger force on a rotating body results in larger _____.
Which law states that "the rate of heat loss of a body is directly proportional to the temperature difference between the body and its surroundings"?
Which of the following is a characteristic of sound waves?
In the absence of ozone layer, which rays will enter into atmosphere?
Match the following machines with their working principles:
(i) Electric motor - (a) Heat energy into mechanical energy
(ii) Steam engin...
Which of the following optical phenomena CANNOT convert unpolarised light to plane polarised light?
Which of the following is the energy quantum of radiation?
Which of the following phenomena establishes the transverse nature of light waves?
The velocity of heat radiation in a vacuum is?
The process involved in making soap is
