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What is the work done to take a particle of mass m from surface of the earth to a height equal to 2R (R=radius of earth )? Ans) Initial PE= - GMm/R Final PE = - GMm/3R
At the neutral position, magnetic field because of the bar magnet is just equal and opposite to the horizontal component of earth's magnetic field.
The electromagnetic wave is going in free space with electricvector . How much average energy is passing through a rectangular hole of length 3 cm and width 1.5 cm inxyand in yz pl
What are the electron microscopy application areas? Electron microscopy application areas are as follows: a. Biology and life sciences b. Semiconductor and data storage
Define coherence and explain temporal and spatial coherence. Show that visibility is a maxim of coherence. Define the 'Q' factor for a spectral line. Explain coherence length and c
Define Radioactive Dating Half-life measurements of radioactive elements in rocks and fossils can be used to determine the age of the specimen. One of the most common types of
Compound Microscope: It is an optical instrument by which very small object like as biological specimens are seen that cannot be seen by naked eyes. Compound microscope havi
B-Infrared (IR) Radiant Heat Heat radiation can be achieved by using infrared (IR) radiation it penetrates about 3mm in the skin. excessive exposure can cause erythema(redden
an object moves along the x axis according -to the equation x(t)=(3t^2-2t+3)m .determine (a) the average speed b/n t=2sec and t=3sec,(b) the instantaneous speed at t= 2s and t=3s (
Basic concepts of electromagnetic spectrum: BASIC CONCEPTS 1. When Sun light falls on a prism, the transmitted light produces a sequence of colours called 'Spectrum'. 2
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