IMPORTANT 10 MARK QUESTIONS FROM 8’th LESSON.
1.Describe the principle and action of a Bainbridge mass spectrometer in determining the isotopic masses.
( JUNE 05,07,08,10, OCT 06,07,10, MARCH09 )
2. Explain the construction and working of a GM (Geiger – Muller )counter.
(March 07, June 09)
3.What are cosmic rays? Explain (i)Latitude effect (ii)Altitude effect of cosmic rays. (March 08,10)
4.Obtain an expression for the amount of the radioactive substance present at any moment . Obtain the relation between half life period and decay constant.(Oct 08 , 09 )
5. What is nuclear reactor?Explain the function of (i)moderator , (ii) control rods and (iii) neutron reflector. Mention the uses of nuclear reactor.