For karachi phy paper q1 if length of simple pendulum is doubled,what will be its time period?? Q2:some whales can communicate effectivly with one another even they are seperated by many kilometers.Why? Q3: Explain why fish under water appears to be at a different depth below the surface than it actually is ?Does it appear deeper or shallower? Q4:in dry Day if you walk on carpet and then touch some conductor,you will get a small electric shock .can u tell why does this happen? Q5:can current flow in circuit without potential difference ?Explain? Q6: What happens to direction of waves pass from deep to shallow part of the water? Q7: Define Farad , Volt,Electrostatic induction. Q8:Inlarge shopping centre ,convex mirror are used for security purpose.Explain y? Q9: State columbs Law Q10:A bird can sit harmlessly on high tnsion wire but it does not receive a fatal electric shock.Explain Why? Q11: Derive realation b/t velocity,frequency? Q12:Why the curved ceiling and boards are used in lecture halls? Q13:Q13:waht are different endoscope ? write their names and uses? Q14:How the electroscope discriminates between conductors and insulators? Q15: State ohms Law............ SEction C Question part1 (A) define shm.show that motion of mass attached to spring is SHM Q1b Water waves in shallow dish are 6cm .At one point,the water moves up and down at a rate of 4.8 oscillation per sec (i) what is speed of water waves? (ii)what is period of water waves? Q2(a): wht is compound microscope ?determine the magnification of the compound microscope also write its uses? part Q2(b) An object 4cm high placed at distance of 12cm from a convex lens of focal length 8cm . Calculate its position & size. Q3(a): Discuss the main features of parallel combination of resistors. Q3(b): If length of copper wire is 1 Meter and 2mm Diameter ,find the resistance of it? Thoori mistakes hain typing m but thoora mind use krna ............. ..................... ............Bye
Posted on: Fri, 31 Oct 2014 11:22:45 +0000
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