At position B
Let the body be at the position B at any instant, after having fallen through a distance x. Potential energy of the body = mg (h - x) If v B is the velocity of the body at B, then v B 2 - 0 2 = 2gx v B 2 = 2gx ..
Let the body be at the position B at any instant, after having fallen through a distance x. Potential energy of the body = mg (h - x) If v B is the velocity of the body at B, then v B 2 - 0 2 = 2gx v B 2 = 2gx ..Car B
Time in seconds 0 5 10 15 20 25 30 35 Distance covered in meters 0 5 15 20 30 60 65 75 The car A travels equal distances in equal intervals of time whereas the car B does not cover equal distances in equal intervals of time. That ..
Voltaic Cell
Electrodes: Copper (+ve) and Zinc (- ve) Electrolyte: dil. H 2 SO 4 (dilute sulphuric ac..
Electrodes: Copper (+ve) and Zinc (- ve) Electrolyte: dil. H 2 SO 4 (dilute sulphuric ac..Dry cell
This is a portable form of Leclanche Cell. A moist paste of NH 4 Cl and ZnCl 2 is contained in a zinc vessel acting as the negative electrode. ZnCl 2 is added to the electrolyte NH 4 Cl. It keeps the paste moist because it is highly hygroscopic. The top is sealed with shellac or pitch so that paste..
This is a portable form of Leclanche Cell. A moist paste of NH 4 Cl and ZnCl 2 is contained in a zinc vessel acting as the negative electrode. ZnCl 2 is added to the electrolyte NH 4 Cl. It keeps the paste moist because it is highly hygroscopic. The top is sealed with shellac or pitch so that paste..Galilean Telescope
This consists of an objective lens O, a convex lens of large focal length and aperture and an eyepiece (E), a concave lens of a short focal length and small aperture separated by a distance equal to the difference in their focal lengths. The parallel beam passing through the objective would have c..
This consists of an objective lens O, a convex lens of large focal length and aperture and an eyepiece (E), a concave lens of a short focal length and small aperture separated by a distance equal to the difference in their focal lengths. The parallel beam passing through the objective would have c..Daniel Cell
Electrodes: Copper vessel (+ve) Zinc rod (-ve) (amalgamated) Electrolyte: dil. H 2 SO 4 Depolarizer: CuSO 4 solution The porous pot (of fired clay or porcelain) allows ions to pass between the two solutions, but prevents the solutions from mixing. A perforated shelf containing CuSO 4 crystal..
Electrodes: Copper vessel (+ve) Zinc rod (-ve) (amalgamated) Electrolyte: dil. H 2 SO 4 Depolarizer: CuSO 4 solution The porous pot (of fired clay or porcelain) allows ions to pass between the two solutions, but prevents the solutions from mixing. A perforated shelf containing CuSO 4 crystal..Applications of velocity-time graphs
The following results can be deduced from velocity-time graph. The acceleration produced in a body The distance covered by a moving object We can derive the equations of motion Let us see how to calculate the distance covered by a moving object from speed-time graph. The figure below gi..
The following results can be deduced from velocity-time graph. The acceleration produced in a body The distance covered by a moving object We can derive the equations of motion Let us see how to calculate the distance covered by a moving object from speed-time graph. The figure below gi..(b) Volume of an object lighter than the liquid, which will float in the liquid
If the object is lighter, it will float on water. In that case its volume can be found out with the help of a sinker. Pour some water in a measuring cylinder and lower the sinker (any body which sinks) into it. Note the level of water. Volume of a floating body using sinker Tie the object to t..
If the object is lighter, it will float on water. In that case its volume can be found out with the help of a sinker. Pour some water in a measuring cylinder and lower the sinker (any body which sinks) into it. Note the level of water. Volume of a floating body using sinker Tie the object to t..Magnetic declination (q)
Magnetic declination is the angle between magnetic axis and the geographic axis. ..
Magnetic declination is the angle between magnetic axis and the geographic axis. ..Fig(b) - Resistivity rT
of nichrome as a function of absolute temperature T Alloys have a residual resistivity even at absolute zero, but a pure metal has a vanishingly small resistivity. This can be used to check the purity of metals. The resistivity of a semiconductor decreases rapidly with increasing temperature as s..
of nichrome as a function of absolute temperature T Alloys have a residual resistivity even at absolute zero, but a pure metal has a vanishingly small resistivity. This can be used to check the purity of metals. The resistivity of a semiconductor decreases rapidly with increasing temperature as s..See what our Users say :
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