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Recent content by anasaziz18

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    Physics: Post your doubts here!

    Since it is a parallel circuit, the pd across the (variable r. and a resistor in series with it) and the other single resistor(rightmost) is the same (i.e the same value as the emf of the battery). Resistance of the rightmost resistor is also unchanged. Hence V/R=I is unchanged. When the...
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    Physics: Post your doubts here!

    I got the ans A. The reason is first calculate the total resistances of 3 and 6 ohm together and separately for 2 and 2 ohm. So, the total resistance for 3 and 6 comes 2 ohms and for the 2 and 2 ohms, the total R is 1 ohm. Due to this, the pd across 2 ohms ( 3 ohm and 6 ohm) will be double of...
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    Physics: Post your doubts here!

    Jazak illahu khairan.
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    Physics: Post your doubts here!

    First the wave is polarised by polariser P. Then the wave vibrates in only one plane ryt? So we can consider it as a sine wave which has its max at 90 degrees. Or if you consider it to be a cosine function then, at 0 degree it is max and at 60 degree, its half since (cos60=0.5) so from 0 to 60...
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    Physics: Post your doubts here!

    for the first part of the ques, sin90=1 right? and sin30 is 0.5. So, think of the polarised wave as a sine curve where max amplitude is at 90 degrees. Now, if at 30 degrees we get half the max amplitude then the polariser should be rotated by 60 degrees since (90-30=60). Next part...
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    Physics: Post your doubts here!

  7. A

    Physics: Post your doubts here!

    Assalamualaikum, I have 2 doubts which are from phy p4. Please help me with them. Here are the questions. Please solve them asap.
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    May June 2002 9701 ms required (p1)

    Please provide me with the may june 2002 mark scheme of p1, AS chemistry...Its urgent..
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