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Q. Why does heat makes matter to expand?
Answer:-
Water contracts as it cools similar to all other liquids until it reaches a temperature of about 4 degrees Celsius at which point it expands and begins to form into crystals and expanding approximately 9 percent.
Resistivity of conductors is most affected by (A) Composition. (B) Temperature. (C) Pressure. (D) Current. Ans: Resistivity of conductors is most
Ultra violet Waves: The wavelength of ultra violet wave from 380mm down to 60nm.
Find the resultant of two vectors defined as A=6km east B=8km north
NEWTON ? "The force which forms an acceleration of 1 ms-2 in a mass of 1 kg". It is represented by N.
Q. Distinguish between interference and diffraction fringes? Interference Diffraction 1) It is because of the superposition of secon
Variation of temperature of a body according to Newton's law: Let Consider a system has a temperature Φi at time t = 0. It is placed in an environment whose temperature is Φ0. We a
Explain the Natural Frequencies and Resonance Standing waves occur when the waves, like those in a vibrating piece of rope, are repeating so that there are places on the rope t
Twin paradox: One of the most popular "paradoxes" in history, predicted trhough A. Einstein's special theory of relativity. Take two twins, born on the similar date on Earth.
The semiconductor material is refined through a process is known as zone refining. It is used for the production of high purity crystals; silicon for example has a melting temperat
An α particle is a positively charged particle. Rutherford observed the behaviour of these particles when they approach the interior of the atoms as shown in fig. Rutherford ob
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