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a. A ball is thrown vertically upwards. After some time, it returns to the thrower. Draw the velocity – time graph and speed – time graph. b. A ball is dropped form some height. After rebounding from the floor,
18
Sep
a. A ball is thrown vertically upwards. After some time, it returns to the thrower. Draw the velocity – time graph and speed – time graph. b. A ball is dropped form some height. After rebounding from the floor, a. A ball is thrown vertically upwards. After some time it returns to the thrower. Draw [...]
Figure shows two capacitors of capacitance 2 muF and 4 muF andf a cell of 90 V . the switch k is suchj that when its is position 1 the circuit ABCD is closed and when it is in position 2, the circuit BCEF is closed . The resistance of both the circuits is negligible so that thr capacitor gets fully chargrd instantly.
18
Sep
Figure shows two capacitors of capacitance 2 muF and 4 muF andf a cell of 90 V . the switch k is suchj that when its is position 1 the circuit ABCD is closed and when it is in position 2, the circuit BCEF is closed . The resistance of both the circuits is negligible [...]
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Figure shows two capacitors of capacitance 2 muF and 4 muF andf a cell of 90 V . the switch k is suchj that when its is position 1 the circuit ABCD is closed and when it is in position 2 ,
the circuit BCEF is closed . The resistance of both the circuits is negligible so that thr capacitor gets fully chargrd instantly. ,
A sphere of mass M and radius R2 has a concentric cavity of radius R1 as shown in figure The force F exerted by the sphere on a particle of mass m located at a distance r from the centre of sphere varies as (0≤r≤∞) .
18
Sep
A sphere of mass M and radius R2 has a concentric cavity of radius R1 as shown in figure The force F exerted by the sphere on a particle of mass m located at a distance r from the centre of sphere varies as (0≤r≤∞) . A body attains a height equal to the radius [...]
a. What can you say about velocity in each of the following position – time graphs? b. The slope of the velocity -time graph is equa to acceleration . (True/ False) c. What does the area under
18
Sep
a. What can you say about velocity in each of the following position – time graphs? b. The slope of the velocity -time graph is equa to acceleration . (True/ False) c. What does the area under a. What can you say about velocity in each of the following position - time graphs? b. The [...]
A 10 km long straight road connects two towns A and B. Two cyclists simultaneously start one from town A and other from town B. On reaching the opposite town, a cyclist immediately returns to his starting town whereas the other cyclist takes some rest and then returns
18
Sep
A 10 km long straight road connects two towns A and B. Two cyclists simultaneously start one from town A and other from town B. On reaching the opposite town, a cyclist immediately returns to his starting town whereas the other cyclist takes some rest and then returns A 10 km long straight road connects [...]
In the circuit shown in Fig, instially K1 is closed and K2 is open . What are the charges on each capacitor. Then K1 was opened and K2 was closed (order is important). What will be the charge on each capacitor now ?
18
Sep
In the circuit shown in Fig, instially K1 is closed and K2 is open . What are the charges on each capacitor. Then K1 was opened and K2 was closed (order is important). What will be the charge on each capacitor now ? In the circuit shown in fig instially K1 is closed and K2 [...]
If the mass of moon is M/81, where M is the mass of earth, find the distance of the point where gravitational field due to earth and moon cancel each other, from the centre of moon. Given the distance between centres of earth and moon is 60 R where R is the radius of earth
18
Sep
If the mass of moon is M/81, where M is the mass of earth, find the distance of the point where gravitational field due to earth and moon cancel each other, from the centre of moon. Given the distance between centres of earth and moon is 60 R where R is the radius of earth [...]
A body attains a height equal to the radius of the earth. The velocity of the body with which it was projected is.
18
Sep
A body attains a height equal to the radius of the earth. The velocity of the body with which it was projected is. A body attains a height equal to the radius of the earth. The velocity of the body with which it was projected is. September 18, 2020 Category: Arihant Physics by D.C Pandey [...]
In the previous problem, when both the keys are closed, charge that will flow through key K1 will be
18
Sep
In the previous problem, when both the keys are closed, charge that will flow through key K1 will be charge that will flow through key K1 will be In the previous problem when both the keys are closed September 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A planet of mass m moves around the sun of mass M in an elliptical orbit. The maximum and minimum distances of the planet from the sun are r1 and r2 respectively. The time period of the planet is proportional to:
18
Sep
A planet of mass m moves around the sun of mass M in an elliptical orbit. The maximum and minimum distances of the planet from the sun are r1 and r2 respectively. The time period of the planet is proportional to: Gravitational field at the centre of a semicircle formed by a thin wire AB [...]