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World Trade Organization Headquarters: Geneva Director General: Ngozi Okonjo-Iweala
Which law states that the ratio of the potential difference across a conductor to the current through it is constant, provided the temperature remains c...
The radii of curvature of the faces of a double convex lens are 20 cm and 30 cm. If focal length of the lens is 36 cm find the refractive index of t...
What is the minimum escape velocity of rocket to be launched into space?
Which law explains why passengers move forward when a moving bus stops suddenly?
Speed of sound in air is unaffected by change in :
The instrument used to see the distant objects on the Earth is –
Where is the magnetic force of a bar magnet the strongest?
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If t...
Which of the following instrument is used to measure heat radiation?
The storage battery of a car has an emf of 15 V. If the internal resistance of the battery is 0.5 Ω, what is the maximum current that can be drawn from...
