Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 1 T 2 T 4 T 8 T 1 T 2 T 4 T 8 T ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? Its energy levels are very close to each other It is very small in size It has only one electron It is highly electropositive Its energy levels are very close to each other It is very small in size It has only one electron It is highly electropositive ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the fastest communication channel? Optical fiber Radio wave Microwave All are operating at nearly the same propagation speed Optical fiber Radio wave Microwave All are operating at nearly the same propagation speed ANSWER DOWNLOAD EXAMIANS APP
Physics A real gas can act as an ideal gas in Low pressure and high temperature High pressure and high temperature Low pressure and low temperature High pressure and low temperature Low pressure and high temperature High pressure and high temperature Low pressure and low temperature High pressure and low temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Who gave black hole theory? Isaac Newton Stephen Hawking Albert Einstein None of these Isaac Newton Stephen Hawking Albert Einstein None of these ANSWER DOWNLOAD EXAMIANS APP
Physics The hydraulic brakes used in automobiles is a direct application of : Toricellian law Archimedes' principle Pascal's law Bernoulli's theorem Toricellian law Archimedes' principle Pascal's law Bernoulli's theorem ANSWER DOWNLOAD EXAMIANS APP
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