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Volume of sphere = (4/3) X π X radius3 Radius of the given sphere = (21/2) cm So, required volume = (4/3) X (22/7) X (21/2) 3 = 4851 cm3 Hence, option a.
In a coil with n turns, what happens to the induced electromotive force (EMF) if the number of turns is doubled while the magnetic flux remains constant?
S.I unit of Inductance is
Minimum Distance for proper vision is
Which instrument is commonly used to measure atmospheric pressure?
Which of the following statements is true when we see 'rainbow'?
What is the device used to amplify and modulate microwave frequency signals called?
This relationship between the angles of incidence and refraction and the indices of refraction of the two media is known as ________.
The Mud festival ‘Chikhal Kalo’ is celebrated in which state?
The SI unit of Pressure is
Which law describes the relationship between electric current and potential difference?
