Logic learning 02

  Some important MCQ . Ans. :- a)-i) , b)- i) , c)- iii) , d)- iii)                        Ans. :- a)- ii) , b)- iii) , c) - iii) , d)- ii)                         Ans.:- a)- ii) , b) - i), c) - iii) , d) - ii)                        And. :- a)- iii) , b)- ii) , c)- iii) , d) - iii)                       Ans. :- a) - ii) , b) - i), c)- iii) , d) - iii)                      Some important previous year questions of programming. 1) 2) 3) 4)

  Surface tension.         Intermolecular forces:- The forces of attraction and repulsion between their molecules . These forces ,are called intermolecular . Their is to forces 1) cohesive force.  2) adhesive force. Cohesive force:- the force of attraction between 2 molecules of same substance called as cohesion. Adhesive force:- the force of attraction and repulsion between the two different substance like liquid and solid ,solid with gas etc. is called adhesion. Range of molecular forces:- The maximum distance between 2 molecules upto which intermolecular forces are effective (also called as short range forces). Distance (10 to the power -9). Sphere of influence :- an imaginary sphere drawn with given molecule as centre and radius equal to the molecular range . Surface film :- The layer of surface of liquid whose thickness is about equal to range of molecular attraction. Surface energy :- when a molecular is taken from the inside to the surface layer work...

 1. ALU  2. STACK POINTER 3. PROGRAM COUNTER 4. INSTRUCTION REGISTER AND DECODER ALU ( ARITHMATIC AND LOGIC UNIT ) It is 8 bit unit  In this arithmetic and logical operation are carried out . ALU contain the binary adder to perform addition substracion by 2’s complement method Data is supplied by memory devices and input ouput devices The result is typically stored in the accumulator. STACK POINTER:- Stack poiointer is a 16 bit register which contain the address of top of stack With the help of incrementer and decrementer stack pointer perform their work The stack pointer is incremented when data is push  The stack pointer is decrementd when data is pop. INSTRUCTION REGISTER AND DECODER :- During the instruction fetch, the first 8 bit of instruction is transfer to the 8 bit instruction register The content of instruction register are available to the instruction decoder The output of decoder get by timing signals, ALU & data buffer. PROGRAM COUNTER:- Program coun...

The elements of this nitrogen group is collectively called  PNICOGENS and their compounds are PNICONIDES.                                  Nitrogen is the most aboundant gas in atmosphere.                                                               Phosphorus is most reactive elements in these group and its colour is yellow ,these form is more reactive form of phosphorus. Which always kept under the water.                  General electronic configuration :- ns2,np3.                In these group the elements have np3 which is outermost orbit and have exactly halffilled so these elements have fairly stability and hence these are inert elements. Eg . N is b...

                                                                     

 Laws:- Newton law of gravitation : Every planets of matter attract each other particles of matter with a force which directly proportional to the product of their masses and inversely proportional to the distance between them.    Kepler s laws:- 1) first law :- all planets revolves around the sun in elliptical orbit with the sun at one focus of the orbit.                                                                                          2) second law:- the radius vector drawn from the sun to the planet swept equal area in equal interval of time.                                                          ...

Chemistry Important reactions. (Advance level)                     

  MAIN FEATURES OF WINDOWS 98 ➢Easier to use : ➢Windows 98 is a single user multitasking operating system  ➢Searching is easy in this os. ➢A file can be opened by a single click ➢It allows us to use multiple monitor with single computer ➢New hardware can be easily installed. MAIN FEATURES  Faster : • Windows and program open faster than in windows 95 • The computer speed and efficiency can be easily improved by single maintainance. True web integration : • It can be easily connected to internet • Web pages can be viewed in any window • Internet conferances can be arranged

 Polymers: The fibres have strong hydrogen bond.             Examples of elastomers :- buna-s , buna - N , neoprene.                                                                   Examples of the fibres:-polyamide ( nylon 6,6) , polyester ( terelyne).                                     Concept of thermoplastic:- which substance which is soft on heating and hardening on cooling.                                                                     Examples of thermoplastic are polythene , polystyrene , polyvinyl ....

  Biomolecules part 2. DNA has bases like adenine , gunine , cytosine , thymine.                                                  RNA has bases like adenine, gunine , cytosine , urasil.                                                        Adenine have hydrogen bond with thymine and cytosine have hydrogen bond with gunine.                                                                       D- fructose , D - manose ,D- glucose , form a same osazone product .                        ...