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4. The length of 40 leaves of a plant are measured correct to one millimeter, and the obtained data is represented in the following table: S.No. Length (in mm) Number of leaves 1. 118 – 126 3 2. 127 – 135 5 3. 136 – 144 9 4. 145 – 153 12 5. 154 – 162 5 6. 163 – 171 4 7. 172 – 180 2 (i) Draw a histogram to represent the given data. [Hint: First make the class intervals continuous] (ii) Is there any other suitable graphical representation for the same data? (iii) Is it correct to conclude that the maximum number of leaves are 153 mm long? Why?
17
Oct
4. The length of 40 leaves of a plant are measured correct to one millimeter, and the obtained data is represented in the following table: S.No. Length (in mm) Number of leaves 1. 118 – 126 3 2. 127 – 135 5 3. 136 – 144 9 4. 145 – 153 12 5. 154 – [...]
Two long current carrying thin wires , both with current I, are held by insulating threads of length L and are in equilibrium as shown in the gigure , With threads making an angle θ with the vertical . If wires have mass λ per unit length then the value of I is :
17
Oct
Two long current carrying thin wires , both with current I, are held by insulating threads of length L and are in equilibrium as shown in the gigure , With threads making an angle θ with the vertical . If wires have mass λ per unit length then the value of I is : are [...]
3. Given below are the seats won by different political parties in the polling outcome of a state assembly elections: (i) Draw a bar graph to represent the polling results. (ii) Which political party won the maximum number of seats?
17
Oct
3. Given below are the seats won by different political parties in the polling outcome of a state assembly elections: (i) Draw a bar graph to represent the polling results. (ii) Which political party won the maximum number of seats? 2. Classify the data in Q.1 above as primary or secondary data. October 17, 2020 [...]
2. The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below. S.No. Section Number of girls per thousand boys 1. Scheduled Caste (SC) 940 2. Scheduled Tribe (ST) 970 3. Non SC/ST 920 4. Backward districts 950 5. Non-backward districts 920 6. Rural 930 7. Urban 910 (i) Represent the information above by a bar graph. (ii) In the classroom discuss what conclusions can be arrived at from the graph.
17
Oct
2. The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below. S.No. Section Number of girls per thousand boys 1. Scheduled Caste (SC) 940 2. Scheduled Tribe (ST) 970 3. Non SC/ST 920 4. Backward districts 950 5. Non-backward districts 920 [...]
A charge Q is uniformly distributed over the surface of non – conducting disc of radius R. The disc rotates about an axis perpendicular to its plane and passing through its centre with an angular to its plane and passing through its centre of the disc. If we keep both the amount of charge placed on the disc and its angular velocity to be constant and vary the radius of the disc then the variation of the magnetic induction at the centre of the disc will be represented by the figure:
17
Oct
A charge Q is uniformly distributed over the surface of non – conducting disc of radius R. The disc rotates about an axis perpendicular to its plane and passing through its centre with an angular to its plane and passing through its centre of the disc. If we keep both the amount of charge placed [...]
The half-life of a radioactive decay is x times its mean life. The value of x is
17
Oct
The half-life of a radioactive decay is x times its mean life. The value of x is The half-life of a radioactive decay is x times its mean life. The value of x is October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A cuurent I flows in an infinetly long wire with cross section in the form of a semicircular ring of radius R. THe magnitude of the manetic induction along its axis is
17
Oct
A cuurent I flows in an infinetly long wire with cross section in the form of a semicircular ring of radius R. THe magnitude of the manetic induction along its axis is A cuurent I flows in an infinetly long wire with cross section in the form of a semicircular ring of radius R. THe [...]
The activity of a radioactive element decreases to one-third of the original activity A0 in a period of 9 years. After a further lapse of 9 years, its activity will be
17
Oct
The activity of a radioactive element decreases to one-third of the original activity A0 in a period of 9 years. After a further lapse of 9 years, its activity will be its activity will be The activity of a radioactive element decreases to one-third of the original activity A0 in a period of 9 years. [...]
92U238 absorbs a neutron. The product emits an electron. This product further emits an electron. The result is
17
Oct
92U238 absorbs a neutron. The product emits an electron. This product further emits an electron. The result is 92U238 absorbs a neutron. The product emits an electron. This product further emits an electron. The result is October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Two long parallel wires at a distance 2 d apart. They carry steady equal currents flowing out of the plane of the paper as shown. The variationn of the magnetic field along the line XX’ is given by
17
Oct
Two long parallel wires at a distance 2 d apart. They carry steady equal currents flowing out of the plane of the paper as shown. The variationn of the magnetic field along the line XX’ is given by Two long parallel wires at a distance 2 d apart. They carry steady equal currents flowing out [...]