CBSE SAMPLE QUESTION PAPER Economics

-12  ߙ  ( ˜ )

 

3 U                                                                                                                             Z 35

1 緤U U U }                                         (1&4)

   () U

           (i) ML2T  (ii) ML-1T-1 (iii) ML-1T (iv) M-1L-1T

   () DU 0.03 U/UU U, 1.0 ꢤU U

        (i) 7.53x10-5     (ii) 7.53x10-7 

        (iii) 8.53x10-5   (iv) 8.53x10-7 

   ()  U                                                                    

        (i) U mU (ii) mU

        (iii) } mU    (iv) c mU

   ()  40 . Ȥ U } 25 Ȥ U · U U

                                                                  

          (i)-6.5 UUU (ii) +6.5 UUU (iii) -1.5 UUU (iv) +6.67 UUU

   (U.) CU SU U U U 

        (i) 21 (ii) 11 (iii) 98 (iv) 109

 2 緤U U U }                                            (1&4)

   () } U U բ                      

   () 270C ɸU淤U 3270C U U ߻ U

           ?                                                                    

   ()  ̈ U U , U v?                                

   ()  ٷ ̍v 1256 U   v  U

   (U) U DU U ߇ U U U ι 緤 U 緤U USU

           ܐ U U                                                                

3   U U U }        (1&4)

    ()  ‡U U 10 U ܻ U, 600 U 5 UU S U U mU

                                                                         

    ()  U U                                                     

    () UU UU U U U U U U UU U U v? 

    () U v U mU ǸU v U 

    (U.) ڢU 跤U y=a sin (wt-kx) y a S U, w } U,

            t U, K ⢿U SU U x,X- U U U ڢU t U v U  

4 緤U U }         (2&3)

    () S , K U, M S U U, U ǸU 贿U UǸU

           U S                      

    () U U U mU բ U U ܻ K

           3&105 U/UU2 U  ܻ U K 1&105 U/UU2 UU U

            U                       

    () h # ߢ .. 贿U

           ߢ U U                 

    () 1.5 Ȥ U 50 U 1.2 U

            Ȥ U U                

5 緤U U }         (2&3)

    () U ˷ U SU U U 1% h U -

             U 2 U 3 S ܻ U, U U } U  

    () U , h U U, ܻ

           UU U U                                         

    () U h                                                        

    () ߇ v U, USU · U ߇ h  

             W1/ F1+W2/ F2=0

6 緤U }         (2&3)

    ()  U SU U (? =7000A0) } UU (?=5500A0) ι U

            U U ( c=3x108./.)                  

    () آ m-SU h # U

           # ǸU U     

     () U 1.0003 U ڢU 6000 A 0 U, U U

           U Uv ڢU U 

     () U cp-Cv=R  S   

7 緤U U }          (2 &2)

    () U բ U U ι 緤 U U U

            ߻ U U                       

    () U m ڢU h v U? U h U   

     () S UU 跤U , 跤U U U U?

     ()  3 2 U鷤 270C 770C U, U

          U U U U U U U ן S

 

Ō :

1. UU U

2. U U U ٢U U, UU MU U U

3. ǸU UU UU

4. ǸU US UU U U

5. h U , U

U- { M


ߢ U

v, ߙ

 

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