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Question 1
Lactometers (used to determine the purity of a sample of milk) and hydrometers (used to determine the density of liquids) are based on the _______ principle.
Question 2
Twin paradox is associated with:
Question 3
The process of transformation of a substance in a gaseous state into a liquid state due to change in pressure or temperature of the substance is called:
Question 4
Which of the following is the unit of Magnetic field strength?
Question 5
The innovative concept of using sunshine to keep house warm in freezing winters is called _____.
Question 6
Which material is used in the manufacturing of electric heater coil?
Question 7
The SI (International system of units) unit of length is _________.
Question 8
The force of attraction between an electron revolving around the nucleus and the nucleus is a _______ force?
Question 9
Which of the following elements has the highest electrical conductivity?
Question 10
By the use of photovoltaic cell, solar energy is converted into ____.
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Dec 7SSC & Railway
