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Ultrasonic waves
Infra-red waves
Sound waves
Micro waves
The weight of 6.023 × 10²² atoms of carbon is
The weight of a rusted iron object compared to that of an unrusted one is
The weight of an object is maximum
The wire of flash bulbs is made up of
The working principle of a washing machine is
The xylem in plants are responsible for:
The yellow colour of human urine is due to a pigment called?
Therm is the unit of -
This group of alumino-silicate minerals is widely used in making electrical insulators
Thomas Clifford Allbutt is associated with the invention of