XII Physics| Past Paper MCQs |2018| Talha's Physics Academy

Описание: This Video contains solution of the following MCQs.
1. The practical application of phenomenon of mutual induction is:
*AC Generator *Transformer *Rectifier *Dynamo
2. The practical application of phenomenon of mutual induction is:
*λ=mv/h * λ=h/(mv^2 ) * λ=h/mv * λ=mh/v
3. Emitter base junction is forward biased in:
*Neither PNP and NPN transistor *NPN transistor
*PNP transistor *Both PNP and NPN transistor
4. Heat energy can’t be measured in :
*Joule *Kelvin *calorie *British thermal unit
5. This is not a scalar quantity:
*Electromotive Force *Electric Flux
*Electric Intensity *Electric Potential
6. When it is desired to increase current in the circuit without affecting the voltage, the batteries must be connected in:
*Series *Parallel
*complex circuit *some in parallel some in series
7. This particle has no charge, no mass and can interact with all particles charged or neutral:
*Neutron *Photon *Positron *Alpha particle
8. A metallic wire of length L, resistance R and resistivity ρ is cut into two equal parts. The resistivity of each part would be:
ρ * 2ρ *ρ/2 *ρ/4
9. tesla (T) is equal to:
*newton x coulomb *newton x ampere
*newton / ampere x meter *newton x meter / ampere
10. An electron can revolve in the nth orbit if, and only if, its angular momentum is equal to:
*h *nh *h / π *nh/2π
11. This one is used as fuel for conventional nuclear reactor:
*92U235 *90Th227 *94Pu239 *88Rs223
12. In electric circuits, Rheostat can be largely used as the:
*source of current *source of potential
*potential divider *power supply
13. Lyman found a series of lines in the spectrum of hydrogen atom in this region:
*Ultra Violet *Visible *Infra red *Far infra red
14. The method of finding the age of specimen by C14 is called:
*Radio therapy *Radio carbon dating
*radio experiment *radiology
15. The rate of flow of blood in the human body can be traced by using this radio isotope:
*20Ca48 *6C12 *1H3 *11Na24
16. The kinetic energy per mole of an ideal gas molecule is:
*3/2 RT *3/2 KT *nRT *2/3 KT
17. The half life of radium is 1600 years. After 6400 years, the sample of surviving radium will be its:
*1/4th *1/8th *1/ 16 th *half
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XI Lectures :   • XI Physics Lectures Old Book  

XI Solved Numericals:   • XI OLD BOOK Solved Numericals Sindh Board ...  

XII Lectures:    • XII Physics Lectures Old Book  

XII Solved Numericals:   • Плейлист  
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