Physics deals with a wide variety of systems, some of its theories were experimentally tested numerous times and found correct as an approximation of nature (within a certain domain of validity). Physics also makes significant contributions through advances in new technologies that arise from theoretical breakthroughs. Some of the day to day useful things of modern-day society, such as television, computers, domestic appliances, and nuclear weapons; advances in thermodynamics are due to the development in the field of physics
Quick GK Test on Physics -2
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Which one of the following statements is correct?
1.Atom bomb is based upon the principle of uncontrolled nuclear fusion.
2.Hydrogen bomb is based upon the principle of uncontrolled nuclear fission.
3.Nuclear reactor is based upon the principle of controlled nuclear fission.CorrectIncorrect
Which of the following waves can propagate in vacuum?
1. Radio waves
2. Light waves
4. Ultrasonic waves Select the correct answer using the codes given below :CorrectIncorrect
Which is the reason why paper becomes brittle and yellow with age ?
1.The acid content in paper causes brittleness to develop.
2.In the presence of visible light, photosensitized oxidation occurs.
3.The ultra-violet component of sunlight causes photolysis of cellulose by direct cleavage of the cellulose polymer.CorrectIncorrect
Water kept in an old surahi is less cold than the water in a new one. Why?CorrectIncorrect
The best conductor of electricity isCorrectIncorrect
The correct sequence of the regions of the sun as one moves from its core to the surface is?
Which one of the statement is true about your weight if you are standing in a lift .CorrectIncorrect
If the earth were 3 times as far from the sun as it is now, how would the gravitational attraction compare with is present value?CorrectIncorrect
Two cars, passing each other at high speed, are in danger of side swiping because :CorrectIncorrect