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[gaurav95]

Can u please answer the 1st q i m getting 8(.5*8*2)In p 3

ms says 22 how pls tell thx

sorry insufficient info 1st q 3rd subpart.............

[username]

2.25
rite?

[Vin]

m * d = m * d

18 * 2.5 = d * 20

d = 2.25

[username]

m * d = m * d

18 * 2.5 = d * 20

d = 2.25

xactly wat i did
but he rote
22?

[Vin]

Might have made a mistake in reading the ms

[holtadit]

NO He's correct.


See the follwoing. Use the formula for an area of a trapezium for this.

0.5*(15+7)*2=  22 metres

[username]

trapezium???
dude which question?///?

[holtadit]

Might have made a mistake in reading the ms

Hes talking about QUESTION 1

[gaurav95]

Hes talking about QUESTION 1

yep  ari is correct i modified it later..............

[gaurav95]

Thanks ari i have understood my mistake.........

[holtadit]

Thanks ari i have understood my mistake.........

no prob

[gaurav95]

Thanks ari i have understood my mistake.........

sorry guys but one more q

same paper
q 6 b
its wavelength=vel/freq

so its  3/5 *10^8/10^14 right

i m getting  6*10^-7 ms says 6*10m

thx in advance

[holtadit]

sorry guys but one more q

same paper
q 6 b
its wavelength=vel/freq

so its  3/5 *10^8/10^14 right

i m getting  6*10^-7 ms says 6*10m

thx in advance

In nearly all the papers they omit the ^-7 sign. Its a PRINTING ERROR.

Your answer is correct.

[Vin]

yep  ari is correct i modified it later..............

haha LOL

ok i see .. thanks Ari for covering

[gaurav95]

In nearly all the papers they omit the ^-7 sign. Its a PRINTING ERROR.

Your answer is correct.

Thanks a lot ARI
...........