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2. The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?
17
Oct
2. The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 [...]
1. The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?
17
Oct
1. The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. [...]
An elevator carrying a charge of 0.5 C is moving down with a velocity of 5 × 10^3 m/s. The elevator is 4 m from the bottom and 3 m horizontally from P as shown in Fig. What magnetic field (μT) does it produce at point P
17
Oct
An elevator carrying a charge of 0.5 C is moving down with a velocity of 5 × 10^3 m/s. The elevator is 4 m from the bottom and 3 m horizontally from P as shown in Fig. What magnetic field (μT) does it produce at point P B Cand D are also marked in the [...]
The probability of survival of a radioactive nucleus for one mean life is
17
Oct
The probability of survival of a radioactive nucleus for one mean life is The probability of survival of a radioactive nucleus for one mean life is October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
40K19 isotope of potassium has a half-life of 1.4 * 10^I9 yr and decays to form stable argon, 40Ar18. A sample of rock has been taken which contains both potassium and argon in the ratio
17
Oct
40K19 isotope of potassium has a half-life of 1.4 * 10^I9 yr and decays to form stable argon, 40Ar18. A sample of rock has been taken which contains both potassium and argon in the ratio 40Ar18. A sample of rock has been taken which contains both potassium and argon in the ratio 40K19 isotope of [...]
U-235 can decay by many ways, let us here consider only two ways, A and B. In decay of U-235 by means of A, the energy released per fission is 210 MeV while in B it is 186 Mev.
17
Oct
U-235 can decay by many ways, let us here consider only two ways, A and B. In decay of U-235 by means of A, the energy released per fission is 210 MeV while in B it is 186 Mev. A and B. In decay of U-235 by means of A let us here consider only [...]
A square loop of side a = 6 cm carries a current I = 1 A. calculate magnetic induction b (in muT ) at point P, lying on the axis of loop and at a distance x = root 7 cm from the centre of loop.
17
Oct
A square loop of side a = 6 cm carries a current I = 1 A. calculate magnetic induction b (in muT ) at point P, lying on the axis of loop and at a distance x = root 7 cm from the centre of loop. A square loop of side a = 6 cm [...]
Mark out the incorrect statement. (1) A free neutron can transform itself into photon. (2) A free proton can transform itself into neutron. (3) In beta minus decay, the electron originates
17
Oct
Mark out the incorrect statement. (1) A free neutron can transform itself into photon. (2) A free proton can transform itself into neutron. (3) In beta minus decay, the electron originates Mark out the incorrect statement. (1) A free neutron can transform itself into photon. (2) A free proton can transform itself into neutron. (3) [...]
2. Classify the data in Q.1 above as primary or secondary data.
17
Oct
2. Classify the data in Q.1 above as primary or secondary data. 2. Classify the data in Q.1 above as primary or secondary data. October 17, 2020 Category: Chapter 14 - Statistics , Maths , NCERT Class 9 ,
Two circular coils X and Y, having equal number of turns and carrying currents in the same sense, subtend same solid angle at point O. If the smaller coil X is midway between O and Y and if we represent the magnetic induction due to bigger coil Y at O as By and the due to smaller coil X at O as Bx,then find the ratio Bx/By
17
Oct
Two circular coils X and Y, having equal number of turns and carrying currents in the same sense, subtend same solid angle at point O. If the smaller coil X is midway between O and Y and if we represent the magnetic induction due to bigger coil Y at O as By and the due [...]
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having equal number of turns and carrying currents in the same sense ,
subtend same solid angle at point O. If the smaller coil X is midway between O and Y and if we represent the magnetic induction due to bigger coil Y at O as By and the due to smaller coil X at O as Bx ,
then find the ratio Bx/By ,
Two circular coils X and Y ,