Question
Who discovered the Rh factor in blood in the year 1940?
Solution
Karl Landsteiner and Alexander Wiener discovered the Rh factor in 1940. This discovery has significant implications in medicine, particularly in blood transfusion and pregnancy, where Rh compatibility is crucial.
In which type of wave do the particles of the medium vibrate perpendicular to the direction of wave propagation?
The half-life of a radioactive substance is 5 hours. How much of the substance remains after 15 hours?
Going from fluorine to chlorine, to bromine and then to iodine, the electro negativity:
What is the escape velocity from the surface of the Earth?
Why does a fountain pen leak on an airplane flying at high altitude?
What type of radiation is produced by a hot object emitting energy?
Which of the following gas is used in the manufacture of Vanaspati Ghee?
What does Ohm's Law state?
Which of the following is a characteristic of a conductor?
The resistance of a wire is directly proportional to:
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