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Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s
Cathode rays were discovered by
Cathode rays when obstructed by metal cause emission of
Certain substances loose their electrical resistance completely at super low temperature. Such substances are called.
China wares are wrapped in straw paper before packing this is the application of concept of
Choose the inright statement from the following:
Choose the only scalar quantity from the following:
Choose the only vector quantity from the following:
Choose the right statement.
Cloud is a colloidal dispersion of