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CBSE Class 12 Physics Set- I Solved Question Paper 2012


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CBSE Physics Set- I Solved Question Paper 2012, given here.

Q.1 Two wires of equal length, one of copper and the other of manganin have the same resistance. Which wire is thicker?

Ans.1 From the relation Resistance = (resistivity x length)/area R and l are constant Therefore area ∝ resistivity As manganin has higher resistivity, wire of manganin will be thicker.

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Q.2 What are the directions of electric and magnetic field vectors relative to each other and relative to the direction of propagation of electromagnetic waves ?

Ans.2 Electric and magnetic field vectors are perpendicular to each other and are perpendicular to the direction of propagation of electromagnetic waves.

To get the CBSE class 12th NCERT SOLUTIONS, Click Here

Q.3 How does the angular separation between fringes in single-slit diffraction experiment change when the distance of separation between the slit and screen is doubled ?

Ans.3 The separation is not the function of distance between the slit and screen. It would not change.

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By:MALAYA KUMAR | On:12-FEB-2015 09:00:59

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By:vivek kumar | On:20-DEC-2014 01:05:33

please send me previous 10 years solved PCM 12 board papers

By:Anjali | On:17-DEC-2014 11:10:03

i want 2013 physics , chemistry and maths solved cbse paper

By:Arun K Lall | On:30-NOV-2013 13:08:12

Please let me know how I can download CBSE PREVIOUS YEARS SOLVED PAPERS for class XII papers i.e. Physics, Mathematics and Chemistry form your site without advertisements. in one go.. Appreciate, if you please email the same to me for my personal reference. With regard. Arun K Lall

By:sanjeev kumar yadav | On:19-OCT-2013 10:00:03

please summit your answer of board question paper

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