प्रकाश परावर्तन तथा अपवर्तन - L18 |अपवर्तनांक पर आधारित प्रश्न |Class 10 विज्ञान | Ruchi Ma'm| 6 PM

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k s"N u m b e r o f S t u d e n t s"0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a freque

The runs scored by two teams A and B on the first 60 balls in a cricket match are given below: "N u m b e r o f b a l l s""T e a m A""T e a m B"1-6 2 5 7-12 1 6 13-18 8 2 19-24 9 10 25-30 4 5 31-36 5 6 37-42 6 3 43-48 10 4 49-54 6 8 55-60 2 10

A triode is operating at E_(c)= -4V , E_(b) = 175 V and l_(b) =10 mA. Around this operating point, the plate characteristics are linear and the parameter values are mu =20, g_(m) =2.5 mA/V. If E_(c) is changed to -6 V with E_(b) = 175 V, the value of l_(b) is given by

A small coil C with N = 100 turns is mounted on one end of a balance beam and introduced between the poles of an electromagnet as shown in the figure. The cross-sectional area of coil is A = 1.0 cm^(2) , length of arm OA of the balance beam is l = 20 cm. When there is no current in the coil, the balance is in equilibrium. On passing a current i = 18 mA through the coil, the equilibrium is restored by putting the additional counter weight of mass Delta m = 40 mg on the balance pan. Find the magnetic induction at the spot where coil is located.

{:(A , B , C , D , E , F , G , H , I , J , K , L , M , N , O , P , Q , R ,S , T ,U , V , W ,X , Y , Z), (1 ,2 , 3 , 4 ,5, 6 , 7,8,9,10 , 11 , 12, 13, 14, 15 , 16 , 17 , 18 , 19, 20 , 21 ,22 , 23 , 24 , 25 , 26):} JLNP: OMKI :: SUWY:?

{:(A , B , C , D , E , F , G , H , I , J , K , L , M , N , O , P , Q , R ,S , T ,U , V , W ,X , Y , Z), (1 ,2 , 3 , 4 ,5, 6 , 7,8,9,10 , 11 , 12, 13, 14, 15 , 16 , 17 , 18 , 19, 20 , 21 ,22 , 23 , 24 , 25 , 26):} NOPQ : MLKJ :: HIJK : ?