Question
The process of union of two or more molecules of a
substance to form a large single molecule is called :Solution
Polymerisation is the chemical process of monomers joining together to form polymers, often it takes many thousands of monomers to make a single polymer.
The resistance of a wire is directly proportional to:
__________ is the metal used for making the filament of the light bulb.
Calculate the speed of light in diamond if its refractive index is 2.4.
(Speed of light = 3 × 10⁸ m/s)
Which of the following is not a natural polymer?
A charged particle oscillates about its mean equilibrium position with a frequency of 105 Hz. What is the frequency of the electromagnetic wa...
Ultrasonic pulse echo technique, a non-destructive ultrasonic testing, is employed for any possible flaw detection in a metallic bar of thickness 30 cm...
A stream of water flowing horizontally with a speed of 20 m/s pushes out of a tube of cross-sectional area 10-1m2 and hits at a v...
One kilogram of ice at 0° C is mixed with one kilogram of water at 85° C. The final temperature of the mixture is
(Tale specific heat of ...
A silicon sample is doped such that the number of holes far exceeds the number of electrons. Which of the following is true about its conductivity?
Sensitivity of the human eye is maximum in the –
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