respectively
A jet airplane travelling at the speed of 500 kmh^1 ejects its products of combustion at the speed of 1500 kmh^1 relative to the jet plane. What is the speed of the latter with respect to an observer on the ground ?
30
Oct
A jet airplane travelling at the speed of 500 kmh^1 ejects its products of combustion at the speed of 1500 kmh^1 relative to the jet plane. What is the speed of the latter with respect to an observer on the ground ? 1) is: A force of -F k acts on O respectively the origin [...]
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Chapter 2 - Motion in a Straight Line
,
Chapter 9 - Rotation
,
NCERT Exemplar Class 11
,
Physics
,
The position-time (x-t) graphs for two children A and B returning from their school O to their homes P and Q, respectively, are shown in fig . Choose the correct entries in the brackets below. a.(A/B) Iives closer to school than (B/A). b. (A/B) starts from the school earlier than (B/A). c. (A/B) walks faster than (B/A). d. A and B reach home at the (same/different) time. e. (A//B) overtakes on the road (once/twice).
30
Oct
The position-time (x-t) graphs for two children A and B returning from their school O to their homes P and Q, respectively, are shown in fig . Choose the correct entries in the brackets below. a.(A/B) Iives closer to school than (B/A). b. (A/B) starts from the school earlier than (B/A). c. (A/B) walks faster [...]
Posted in:
Chapter 2 - Motion in a Straight Line
,
Chapter 9 - Rotation
,
NCERT Exemplar Class 11
,
Physics
,
A particle is vibrating in SHM. If its velocities are v1 and v2 when the displacements from the mean position are y1 and y2, respectively, then its time period is
30
Oct
A particle is vibrating in SHM. If its velocities are v1 and v2 when the displacements from the mean position are y1 and y2, respectively, then its time period is A particle is vibrating in SHM. If its velocities are v1 and v2 when the displacements from the mean position are y1 and y2 respectively [...]
In a conducting hollow sphere of inner and outer radii 5 cm and 10 cm, respectively, a point charge 1 C is placed at point A, that is 3 cm from the center C of the hollow sphere. An external uniform electric field to magnitude 20NC−1 is also applied. Net electric force on this charge is 15 N, away from the center of the sphere as shown. Find the magnitude of net force exerted on the charge placed at point A by the induced charges on the sphere
30
Oct
In a conducting hollow sphere of inner and outer radii 5 cm and 10 cm, respectively, a point charge 1 C is placed at point A, that is 3 cm from the center C of the hollow sphere. An external uniform electric field to magnitude 20NC−1 is also applied. Net electric force on this charge [...]
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a point charge 1 C is placed at point A ,
away from the center of the sphere as shown. Find the magnitude of net force exerted on the charge placed at point A by the induced charges on the sphere ,
In a conducting hollow sphere of inner and outer radii 5 cm and 10 cm ,
respectively ,
that is 3 cm from the center C of the hollow sphere. An external uniform electric field to magnitude 20NC−1 is also applied. Net electric force on this charge is 15 N ,
A carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62 K, its efficiency increases to 1/3. Then T1 and T2 are, respectively,
29
Oct
A carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62 K, its efficiency increases to 1/3. Then T1 and T2 are, respectively, A carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62 K its efficiency increases to 1/3. Then [...]
The indicator diagram for two processes 1 and 2 carrying on an ideal gas is shown in the given figure. If m1 and m2 be the slopes (dP/dV) for process 1 and Process 2, respectively, then
29
Oct
The indicator diagram for two processes 1 and 2 carrying on an ideal gas is shown in the given figure. If m1 and m2 be the slopes (dP/dV) for process 1 and Process 2, respectively, then respectively The indicator diagram for two processes 1 and 2 carrying on an ideal gas is shown in the [...]
A system consisting of two masses connected by a mass less rod lie along the x−axis. A 0.4 kg mass is at a distance x=2m while a 0.6 kg mass is at a distance x=7 m. The x−coordinate of the centre of mass is
29
Oct
A system consisting of two masses connected by a mass less rod lie along the x−axis. A 0.4 kg mass is at a distance x=2m while a 0.6 kg mass is at a distance x=7 m. The x−coordinate of the centre of mass is are placed at the corner of right angle triangle as shown [...]
Four particles of masses m, 2m, 3m and 4m are arranged at the corners of a parallelogram with each side equal to a and one of the angle between two adjacent sides as 60 degree. The parallelogram lies in the x-y plane with mass m at the origin and 4m on the x-axis. The centre of mass of the arrangement will be located at
29
Oct
Four particles of masses m, 2m, 3m and 4m are arranged at the corners of a parallelogram with each side equal to a and one of the angle between two adjacent sides as 60 degree. The parallelogram lies in the x-y plane with mass m at the origin and 4m on the x-axis. The centre [...]
Three particles of masses 1kg 2kg and 3kg are situated at the corners of an equilateral triangle of side b in the x-y plane with mass 1 kg at the origin and 2 kg on the x axis. The coordinates of the centre of mass are
29
Oct
Three particles of masses 1kg 2kg and 3kg are situated at the corners of an equilateral triangle of side b in the x-y plane with mass 1 kg at the origin and 2 kg on the x axis. The coordinates of the centre of mass are are placed at the corner of right angle triangle [...]
Argon gas is adiabatically compressed to half its volume. If P, V and T represent the pressure, volume and temperature of the gaseous system, respectively, at any stage, then the
29
Oct
Argon gas is adiabatically compressed to half its volume. If P, V and T represent the pressure, volume and temperature of the gaseous system, respectively, at any stage, then the Argon gas is adiabatically compressed to half its volume. If P at any stage respectively then the V and T represent the pressure volume and [...]