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Which of the following pairs has the same dimensions? a. Torque and work b. Angular momentum and Planck’s constant c. Energy and Young’s modulus
15
Sep
Which of the following pairs has the same dimensions? a. Torque and work b. Angular momentum and Planck’s constant c. Energy and Young’s modulus Which of the following pairs has the same dimensions? a. Torque and work b. Angular momentum and Planck's constant c. Energy and Young's modulus September 15, 2020 Category: Uncategorised (JEE Advanced [...]
A body sliding on a smooth inclined plane required 4 s to reach the bottom, starting from rest at the top. How much time does it take to cover one-fourth the distance starting from rest at the top?
15
Sep
A body sliding on a smooth inclined plane required 4 s to reach the bottom, starting from rest at the top. How much time does it take to cover one-fourth the distance starting from rest at the top? A body sliding on a smooth inclined plane required 4 s to reach the bottom starting from [...]
The internal and external diameters of a hollow cylinder are measured with the help of a Vernier callipers. Their values are 4.23 +- 0.01 cm and 3.87 +- 0.01 cm, respectively. The thickness of the wall of the cylinder is
15
Sep
The internal and external diameters of a hollow cylinder are measured with the help of a Vernier callipers. Their values are 4.23 +- 0.01 cm and 3.87 +- 0.01 cm, respectively. The thickness of the wall of the cylinder is respectively. The thickness of the wall of the cylinder is The internal and external diameters [...]
The heat generated in a circuit is given by Q = I^2Rt, where I is current, R is resistance, and t is time. If the percentage errors in measuring I, R, and t are 2%, 1% and 1%, respectively, then the maximum error
15
Sep
The heat generated in a circuit is given by Q = I^2Rt, where I is current, R is resistance, and t is time. If the percentage errors in measuring I, R, and t are 2%, 1% and 1%, respectively, then the maximum error 1% and 1% and t are 2% and t is time. If [...]
The dimensional formula for a physical quantity x is (M^-1 L^3 T^-2). The errors in measuring the quantities M, L, and T, respectively, are 2%, 3% and 4%. The maximum percentage of error that occurs
15
Sep
The dimensional formula for a physical quantity x is (M^-1 L^3 T^-2). The errors in measuring the quantities M, L, and T, respectively, are 2%, 3% and 4%. The maximum percentage of error that occurs 3% and 4%. The maximum percentage of error that occurs and T are 2% L respectively The dimensional formula for [...]
The ratio of the kinetic energy required to be given to a satellite to escape from the earth’s gravity to the kinetic energy required to be given to it so that it moves in a circular orbit just above the earth’s surface is:
15
Sep
The ratio of the kinetic energy required to be given to a satellite to escape from the earth’s gravity to the kinetic energy required to be given to it so that it moves in a circular orbit just above the earth’s surface is: If a satellite orbits as close to the earth's surface as possible [...]
The relative density of a material is found by weighing the body first in air and then in water. If the weight in air is (10.0 +- 0.1) gf and the weight in water is (5.0 +- 0.1) gf, then the maximum
15
Sep
The relative density of a material is found by weighing the body first in air and then in water. If the weight in air is (10.0 +- 0.1) gf and the weight in water is (5.0 +- 0.1) gf, then the maximum The relative density of a material is found by weighing the body first [...]
The ratio of the radii of planets A and B is K1 and ratio of accelerations due to gravity on them is K2 The ratio of escape velocities from them will be:
15
Sep
The ratio of the radii of planets A and B is K1 and ratio of accelerations due to gravity on them is K2 The ratio of escape velocities from them will be: The ratio of the radii of planets A and B is K1 and ratio of accelerations due to gravity on them is K2 [...]
While measuring acceleration due to gravity by a simple pendulum, a student makes a positive error of 2% in the length of the pendulum and a positive error of 1% in the value of time period.
15
Sep
While measuring acceleration due to gravity by a simple pendulum, a student makes a positive error of 2% in the length of the pendulum and a positive error of 1% in the value of time period. a student makes a positive error of 2% in the length of the pendulum and a positive error of [...]
The mass of a spaceship is 1000 kg. It is to be launched from the earths surface out into free space. The value of g and R (radius of earth) are 10 m/s and 6400 km respectively. The required energy for this work will be :
15
Sep
The mass of a spaceship is 1000 kg. It is to be launched from the earths surface out into free space. The value of g and R (radius of earth) are 10 m/s and 6400 km respectively. The required energy for this work will be : If a satellite orbits as close to the earth's [...]