Question Answers
Sahay Sir > Question Answers
The escape velocity for a body projected vertically upwards from the surface of earth is 11 km/s. If the body is projected at an angle of 45 degree with the vertical, the escape velocity will be
15
Sep
The escape velocity for a body projected vertically upwards from the surface of earth is 11 km/s. If the body is projected at an angle of 45 degree with the vertical, the escape velocity will be The escape velocity for a body projected vertically upwards from the surface of earth is 11 km/s. If the [...]
The escape velocity of a body from earths surface is Ve. The escape velocity of the same body from a height equal to 7R from the earths surface will be
15
Sep
The escape velocity of a body from earths surface is Ve. The escape velocity of the same body from a height equal to 7R from the earths surface will be The escape velocity of a body from earths surface is Ve. The escape velocity of the same body from a height equal to 7R from [...]
A body is orbiting very close to the earth surface kinetic energy K.E. The energy required to completely escape from it is
15
Sep
A body is orbiting very close to the earth surface kinetic energy K.E. The energy required to completely escape from it is A body is orbiting very close to the earth surface kinetic energy K.E. The energy required to completely escape from it is September 15, 2020 Category: Cengage NEET by C.P Singh , Chapter [...]
While measuring the acceleration due to gravity by a simple pendulum, a student makes a positive error of 1 % in the length of the pendulum and a negative error of 3 % in the value of time period.
15
Sep
While measuring the acceleration due to gravity by a simple pendulum, a student makes a positive error of 1 % in the length of the pendulum and a negative error of 3 % in the value of time period. a student makes a positive error of 1 % in the length of the pendulum and [...]
The length of a strip measured with a meter rod is 10.0 cm. Its width measured with a vernier callipers is 1.00 cm, The least count of the meter rod is 0.1 cm and that of vernier callipers is 0.01 cm.
15
Sep
The length of a strip measured with a meter rod is 10.0 cm. Its width measured with a vernier callipers is 1.00 cm, The least count of the meter rod is 0.1 cm and that of vernier callipers is 0.01 cm. The least count of the meter rod is 0.1 cm and that of vernier [...]
The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is
15
Sep
The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is The kinetic energy needed to project a body of mass m from the earth surface (radius R) to infinity is September 15, 2020 Category: Cengage NEET by C.P Singh , Chapter 12 - Gravitation , [...]
The escape velocity from the earth is 11 kms^−1. The escape velocity from a planet having twice the radius and same mean density as that of earth is
15
Sep
The escape velocity from the earth is 11 kms^−1. The escape velocity from a planet having twice the radius and same mean density as that of earth is The escape velocity from the earth is 11 kms^−1. The escape velocity from a planet having twice the radius and same mean density as that of earth [...]
The mass of a body is 20.000 g and its volume is 10.00 cm^3. If the measured values are expressed to the correct significant figures, the maximum error in the value of density is
15
Sep
The mass of a body is 20.000 g and its volume is 10.00 cm^3. If the measured values are expressed to the correct significant figures, the maximum error in the value of density is The mass of a body is 20.000 g and its volume is 10.00 cm^3. If the measured values are expressed to [...]
A satellite going round the earth in a circular orbit loses some energy due to a collision. Its speed is υ and distance from the earth is d.
15
Sep
A satellite going round the earth in a circular orbit loses some energy due to a collision. Its speed is υ and distance from the earth is d. A satellite going round the earth in a circular orbit loses some energy due to a collision. Its speed is υ and distance from the earth is [...]
A highly rigid cubical block A of small mass M and side L is fixed rigidly on the other cubical block of same dimensions and of modulus of rigidity n such that the lower face of A completely covers the upper face of B. The
15
Sep
A highly rigid cubical block A of small mass M and side L is fixed rigidly on the other cubical block of same dimensions and of modulus of rigidity n such that the lower face of A completely covers the upper face of B. The and g is the acceleration due to gravity. r is [...]