how longs & what conditions will a matter, say for example
U, after an atomic explosion and was converted completely
into energy will again condensed back into a matter named U'
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The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure
atoms are composed of Electrons & Protons or Electrons & Protons ?
What is voltage? ?? What type of of show voltage. ?? Practillay how's voltage?
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO
The percentage of carbon is the least in 1 Grey cast iron 2 Wrought iron 3 White cast iron 4 Steel
The dark lines in the solar spectrum are due to 1 Absorption of corresponding wavelengths by the prism used in he spectrograph 2 Destructive interference between waves of certain definite wavelengths 3 Absorption of corresponding wavelengths by the outer layers of the sun 4 None of these
In fireworks, the green flame is produced because of 1 Mercury 2 Sodium 3 Potassium 4 Barium
The ore of which of the following metals can be concentrated by hydraulic washing? 1 Tin 2 Sodium 3 Iron 4 Manganese
when u step up the voltage using atransformer ,,,then what about the secondary current will it be increased or decreased ?
Explain any four values that can be developed through teaching Physical Science
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What is the Taxonomy ?