Define Umbra?
Answer / anand kumar gupta
Umbra: It is the darkest portion in the shadow.
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Explain about Bessemer?
to find the temperature of the sun, the following law is used 1. Charles'law, 2. Stefan's fourth power law of radiation, 3. Boyle's law, 4. Kirchhoff's law
Explain the Fluorescence ?
Considering the specific heat of aluminum is 0.21, iron is 0.10, and lead is 0.03, which metal will show the largest increase in temperature per calorie added to onegram of that metal?
what is Gauge?
When a glass cylinder is filled with water and a piece of thick paper is placed at the mouth and the cylinder is inverted, the paper dies not fall. Why ?
Why it becomes bitterly cold as soon as the snow starts melting?
Explain the difference between the atomic theory and the kinetic theory?
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The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?
2 Answers College School Exams Tests, DELL, Sony,
Explain why does sun appear flat during sunrise and sunset?