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Which of the following element is found in maximum percentage in the human body?
A wire carrying a current of 4.0 A is shaped into a circular arc of radius 8.0 cm. If the arc subtends an angle of 90° at the center, what is the magn...
Which electromagnetic wave has the longest wavelength?
Addition of ethylene dibromide to petrol
When a monochromatic light of frequency less than the threshold frequency is incident on a metal surface, which of the following occurs?
_______ is a simple device that is used to either break an electric circuit or complete it.
A liquid rises in a capillary tube due to:
Which food group is rich in dietary fiber?
The method of protecting iron from rusting, by coating a thin layer of Zinc is called -
Which of the following is true regarding the periodic table?