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Dispersion of Light:
When a beam of light is permitted to pass by a prism, it splits in a band of different colors. This band of different colors is known as spectrum and the phenomenon of spreading light in to its constituent colours is called as dispersion of light.
Calculate the specific heat of a metal from the following data. A container made of the metal has a mass of 3.2 kg and contains 20 kg of water. A1.7 kg piece of the metal initially
Define the term scanning electron microscope. Scanning electron microscope: The scanning electron microscope (SEM) is a form of electron microscope which images the sample s
what are the shapes of inorganic molecules?
how gas expened ?
Q. The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall ma way by means of a large convex lens. What is the maximum possible focal
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
A record player's needle is 6.5 cm from the center of a 45-rpm record. Calculate velocity of the needle?
concave grating and rowland''s mounting theory
Infrared Waves: Infrared wave also known as heat wave. These waves are radiation by hot body at dissimilar temperature.
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
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