IIT JEE-AIEEE 2012, Entrance Notifications, Study Tips, Engineering Preparation, Practice Test Papers, Experts Advice

Physics
Spotlight S rotates in a horizontal plane with constant angular velocity of 0.1 radian/second. The spot of light P moves along the wall at a distance of 3m. The velocity of the spot P when is … m/s.
Chemistry
(Subjective Type) An organic compound was burnt with twice the amount of oxygen needed for complete combustion to and . The hot gases when cooled to 0⁰ C and 1atm. Pressure, measured 2.24 liters. The water collected during cooling weighed 0.9g. The vapour pressure of pure water at 20⁰C is 17.5 mm Hg and is lowered by 0.104mm when 50g of the organic compound are dissolved in 1000 g of water. Give the molecular formula of the organic compound. (IIT 1983)
Mathematics
If Z₁ lies on \|Z\| =1 and Z₂ lies on \|Z\| = 2, then

Answers / Solutions / Hints

Free Sign Up!

@ INR 1,995/-