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Na+ ion is isoelectronic with:
(1) Li+
(2) Mg+2
(3) Ca+2
(4) Ba+2
Ans:(b) Mg+2
Two particles execute S.H.M of same amplitude and frequency ,along the same straight line from same mean position.They cross one another without collision,when going in opposite di
Q. Show the use of Fire extinguisher? Ans: a) Pull the pin at the top of the extinguisher. b) Aim the nozzle towards the base of the fire. c) Stand approximately 8
Isn't there any relation to calculate the dipole moment from the electronegativities of the participating atoms? Solution) formulae:- 16(X A -X B )+3.5(X A -X B ) 2
A source producing sound at frequency 400 Hz is moving along the Y axis with a speed of 22 metre per second. A listener is situated at position (660m,0). Find the frequency of the
Fast neutrons can be changed into slow neutrons by certain materials known as moderator's when last moving neutrons pass by a moderator, they combine with the molecules of the mod
The helicopter view in fig. p3.29
Derive second law of thermodynamics According the thermodynamics II Law, *efficiency never be unity or never exceed unity. *Coefficient of performance never be infinite
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A 50.0-g toy car travelling with a velocity of 3.00 m/s due north collides head-on with a 180.0-g fire truck travelling with a velocity of 0.50 m/s due south. The toys stick to
What is the difference among isolation transformers and step up or step down transformer? Actually an isolation transformer may be physically the similar as a Step up/Step Down
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