what is the meltng point of copper?.
Why is the temperature of the body regulated by the skin ?
Explain about Ultraviolet rays?
Which lens is used for correcting long ?sightedness ?
Explain the Mass and Weight ?
What is the universal law of universal gravitation?
What is the life of permanent magnet and what type of magnet is used in speakers?
which of the following is connected with blood pressure?
Explain about Barometer?
What is the velocity of light ?
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the the domestic consumption of electricity is calculated in
Which waves are used in sonography?