**** Physics MCQ doubts ***

[Martee100]

I have some doubts could someone clear. I would be really grateful!

 

[Your-Blood]

For the first one use formula efficiency = output / input

output = 150 x 10³

Input = (fuel consumed per second) x (energy content per liter)

.= (20/ 60 x 60 ) x (40 x 10^6)

simplify you get (B)

 

[Your-Blood]

Resolve horizontal components and multiply with 2 because there are 2 tensions

 

[Suno Yaar]

Resolve horizontal components and multiply with 2 because there are 2 tensions

Do we need to memorize the wavelenghts and frequencies of all the electromagnetic waves and separate wavelengths and frequencies of VIBGYOR?

 

[Suno Yaar]

And I am short of time. Which past papers should I solve? Which are the must-to-do past papers? ANYONE HERE TO ANSWER ME? :/

 

[Martee100]

And I am short of time. Which past papers should I solve? Which are the must-to-do past papers? ANYONE HERE TO ANSWER ME? :/

Do the last three years all variants!

 

[Martee100]

Resolve horizontal components and multiply with 2 because there are 2 tensions

Thanks alot dude!

 

[Suno Yaar]

Do the last three years all variants!

oh i dont have time. okay please solve question 24 http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w05_qp_1.pdf

 

[Your-Blood]

Do we need to memorize the wavelenghts and frequencies of all the electromagnetic waves and separate wavelengths and frequencies of VIBGYOR?

YES
Memorize only wavelengths or frequency.

If you memorize one you can find other by V=f(Lamda)

V = C = 3.0 x 10^8 (speed of light) same for all EMR

 

[Suno Yaar]

YES
Memorize only wavelengths or frequency.

If you memorize one you can find other by V=f(Lamda)

V = C = 3.0 x 10^8 (speed of light) same for all EMR

THANKS MAN!
okay please solve question 24 http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w05_qp_1.pdf

 

[Martee100]

oh i dont have time. okay please solve question 24 http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w05_qp_1.pdf

Intensity is I=A^2 and I=F^2
Amplitude has been doubled while frequency has been halved so no effect and B is the answer

 

[Suno Yaar]

Intensity is I=A^2 and I=F^2
Amplitude has been doubled while frequency has been halved so no effect and B is the answer

thanks a lot. you are the best. maY Allah give you peace, blessings, happiness, sugar, spice and everything nice. may you get admission in cambridge university. may you get a good family.

 

[Martee100]

thanks a lot. you are the best. maY Allah give you peace, blessings, happiness, sugar, spice and everything nice. may you get admission in cambridge university. may you get a good family.

Thanks! You too

 

[Martee100]

Here is one more doubt ! Help :'(

 

[stareaj]

Here is one more doubt ! Help :'(

Not duress but w plus h shuld equal to t as in equilibrium so t largest

 

[stareaj]

Please explainPhysic As oct 2010 / 12 mcq 22 and 34
May 2011/12 mcq 15,16,24

 

[Trash Can]

man dats a hell lot of problem..!! okay here it goes for 2012: M/J'12 : Q.4,17,18,20,24,26,29,30,35,37,38
O/N'12 :Q.8,12,13,14,16,17,18,19,22,26,30,31
O/N'11 :1,2,7,9,10,11,12,14,15,17,21,23,26,28,31,33,34,35,38,39

okay sum plzz help me out..plzz...!

 

[Your-Blood]

man dats a hell lot of problem..!! okay here it goes for 2012: M/J'12 : Q.4,17,18,20,24,26,29,30,35,37,38
O/N'12 :Q.8,12,13,14,16,17,18,19,22,26,30,31
O/N'11 :1,2,7,9,10,11,12,14,15,17,21,23,26,28,31,33,34,35,38,39

okay sum plzz help me out..plzz...!

Who's gonna solve these in last minute?

 

[stareaj]

Who's gonna solve these in last minute?

PlsSomebody please helppppppppp these are my problems don't have any link pls
Physic As oct 2010 / 12 mcq 22 and 34
May 2011/12 mcq 15,16,24
May 2011/ mcq 14,15
Oct2011/13 mcq 17,25
Oct 2011/12 mcq 26
May 2012/12 mcq 5

 

[killer22]

Both questions please!
Answers are
17: A
18: B