Physics-
General
Easy
Question
Referring to previous problem, what is the gravitational field strength in this region ?
- 0.025 N kg-1
- 0.40 N kg-1
- 2.5 Nkg-1
- 4.0 N kg-1
The correct answer is: 0.40 N kg-1
Related Questions to study
physics-
A spherical uniform planet is rotating about its axis. The velocity of a point on its equator is V. Due to the rotation of planet about its axis the acceleration due to gravity g at equator is 1/2 of g at poles. The escape velocity of a particle on the planet in terms of V.
A spherical uniform planet is rotating about its axis. The velocity of a point on its equator is V. Due to the rotation of planet about its axis the acceleration due to gravity g at equator is 1/2 of g at poles. The escape velocity of a particle on the planet in terms of V.
physics-General
physics-
A particle starts from rest at a distance R from the centre and along the axis of a fixed ring of radius R & mass M. Its velocity at the centre of the ring is:
A particle starts from rest at a distance R from the centre and along the axis of a fixed ring of radius R & mass M. Its velocity at the centre of the ring is:
physics-General
physics-
Two identical spherical balls each of mass m are placed as shown in figure. Plot the variation of g(gravitation intensity) along the x-axis.
Two identical spherical balls each of mass m are placed as shown in figure. Plot the variation of g(gravitation intensity) along the x-axis.
physics-General
physics-
A particle of mass M is at a distance a from surface of a thin spherical shell of equal mass and having radius a.
A particle of mass M is at a distance a from surface of a thin spherical shell of equal mass and having radius a.
physics-General
physics-
A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F1 on a particle placed at a distance 3R from the centre of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with cavity now applies a gravitational force F2 on the same particle. The ratio F2 /F1 is:
A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F1 on a particle placed at a distance 3R from the centre of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with cavity now applies a gravitational force F2 on the same particle. The ratio F2 /F1 is:
physics-General
physics-
Find the distance between centre of gravity and centre of mass of a two particle system attached to the ends of a light rod. Each particle has same mass. Length of the rod is R, where R is the radius of earth
Find the distance between centre of gravity and centre of mass of a two particle system attached to the ends of a light rod. Each particle has same mass. Length of the rod is R, where R is the radius of earth
physics-General
physics-
A newly discovered planet has a density eight times the density of the earth and a radius twice the radius of the earth. The time taken by 2 kg mass to fall freely through a distance S near the surface of the earth is 1 second. Then the time taken for a 4 kg mass to fall freely through the same distance S near the surface of the new planet is
A newly discovered planet has a density eight times the density of the earth and a radius twice the radius of the earth. The time taken by 2 kg mass to fall freely through a distance S near the surface of the earth is 1 second. Then the time taken for a 4 kg mass to fall freely through the same distance S near the surface of the new planet is
physics-General
physics-
Two concentric shells of uniform density of mass M1 and M2 are situated as shown in the figure. The forces experienced by a particle of mass m when placed at positions A, B and C respectively are (given OA = p, OB = q and OC = r)
Two concentric shells of uniform density of mass M1 and M2 are situated as shown in the figure. The forces experienced by a particle of mass m when placed at positions A, B and C respectively are (given OA = p, OB = q and OC = r)
physics-General
physics-
A spherical hole of radius R/2 is excavated from the asteroid of mass M as shown in fig. The gravitational acceleration at a point on the surface of the asteroid just above the excavation is
A spherical hole of radius R/2 is excavated from the asteroid of mass M as shown in fig. The gravitational acceleration at a point on the surface of the asteroid just above the excavation is
physics-General
physics-
A large spherical planet of radius R, made of a material of density d, has a spherical cavity of radius R/2, with center of cavity a distance R/2 from the centre of the planet. Find the gravitational force on a small mass ‘m’ at the center of the cavity.
A large spherical planet of radius R, made of a material of density d, has a spherical cavity of radius R/2, with center of cavity a distance R/2 from the centre of the planet. Find the gravitational force on a small mass ‘m’ at the center of the cavity.
physics-General
physics-
Two mirrors labelled L1 for left mirror and L2 for right mirror in the figure are parallel to each other and 3.0 m apart. A person standing 1.0 m from the right mirror (L2 ) looks into this mirror and sees a series of images. The second nearest image seen in the right mirror is situated at a distance :
Two mirrors labelled L1 for left mirror and L2 for right mirror in the figure are parallel to each other and 3.0 m apart. A person standing 1.0 m from the right mirror (L2 ) looks into this mirror and sees a series of images. The second nearest image seen in the right mirror is situated at a distance :
physics-General
physics-
A beam of light strikes one mirror of a right angle mirror assembly at an angle of incidence 45° as shown in the figure. The right angle mirror assembly is rotated such that the angle of incidence becomes 60°. Which of the following statement is correct about the emerging light beam.
A beam of light strikes one mirror of a right angle mirror assembly at an angle of incidence 45° as shown in the figure. The right angle mirror assembly is rotated such that the angle of incidence becomes 60°. Which of the following statement is correct about the emerging light beam.
physics-General
physics-
A beam of light consisting of red, green and blue and is incident on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47 respectively. The prism will :
A beam of light consisting of red, green and blue and is incident on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47 respectively. The prism will :
physics-General
physics-
Two identical thin isosceles prisms of refracting angle ‘A’ and refractive index 
are placed with their bases touching each other. Two parallel rays of light are incident on this system as shown. The distance of the point where the rays converge from the prism is :
Two identical thin isosceles prisms of refracting angle ‘A’ and refractive index are placed with their bases touching each other. Two parallel rays of light are incident on this system as shown. The distance of the point where the rays converge from the prism is :
physics-General
physics-
A beam of light has a small wavelength spread 
about a central wavelength 
. The beam travels in vaccum until it enters a glass plate at an angle 
relative to the normal to the plate, as shown in figure. The index of refraction of the glass is given by n(). The angular spread dq' of the refracted beam is given by
A beam of light has a small wavelength spread about a central wavelength . The beam travels in vaccum until it enters a glass plate at an angle relative to the normal to the plate, as shown in figure. The index of refraction of the glass is given by n(). The angular spread dq' of the refracted beam is given by
physics-General
