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Q. At the Curie temperature, the ferromagnetic materials get converted into
At Curie temperature, a ferromagnetic substance is converted into paramagnetic substance.
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Q. Stationary wave is formed by
Q. In barometer mercury is preferred over water because
Q. The motion of the wheels of a bullock-cart while moving on the road is an example of
Q. For a ray of light to suffer total internal reflection it has to pass from
Q. The cover of a solar cooker is made of glass because
Q. Two pins sticking vertically at the end of a bar magnet do not hang vertically because
Q. Electromagnetic waves are transverse in nature is evident by
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