Questions asked by Raknos

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• A concave mirror of focal length 10cm. A square wire of side 3cm is placed 23cm away from the mirror. The centre of the square lies on the principal axis. What is the area enclosed by the image?
  
• How do I compare #sin 1^@# and #sin1#?
  
• A little confusion; How do you represent hydrolysis in a chemical equation?: by writing H2O or H3O+
  
• This is a question from my 11th grade textbook, why does the alkylation of benzene with 1-chloropropane gives 2-propyl benzene and not 1-propylbenzene?
  
• How many lone pairs are present on carbon?
  
• What is the ifferential equation of the family of hyperbolas: #x^2/a^2 + y^2/b^2 = 1#?
  
• Arrange in increasing order of boiling point and give reason? Benzaldehyde, p-tolualdehyde, p-nitrobenzaldehyde, acetophenone.
  
• How does #e^(-x)(dy/dx)-e^(-x)y=e^(-x)cosx# simplify to #d/dx(ye^-x)=e^-xcosx#?
  
• How to calculate ammeter and voltmeter readings?