Physics-
General
Easy
Question
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)
The correct answer is:
Related Questions to study
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
physics-
A ray of light strikes a plane mirror at an angle of incidence 45º as shown in the figure. After reflection, the ray passes through a prism of refractive index 1.5, whose apex angle is 4º. The angle through which the mirror should be rotated if the total deviation of the ray is to be 90º is
A ray of light strikes a plane mirror at an angle of incidence 45º as shown in the figure. After reflection, the ray passes through a prism of refractive index 1.5, whose apex angle is 4º. The angle through which the mirror should be rotated if the total deviation of the ray is to be 90º is
physics-General
physics-
A ray of light is incident normally on a prism of refractive index 1.5, as shown. The prism is immersed in a liquid of refractive index 'm'. The largest value of the angle ACB, so that the ray is totally reflected at the face AC, is 30°. Then the value of m must be:
A ray of light is incident normally on a prism of refractive index 1.5, as shown. The prism is immersed in a liquid of refractive index 'm'. The largest value of the angle ACB, so that the ray is totally reflected at the face AC, is 30°. Then the value of m must be:
physics-General
physics-
A ray of light is incident normally on the first refracting face of the prism of refracting angle A. The ray of light comes out at grazing emergence. If one half of the prism (shaded position) is knocked off, the same ray will
A ray of light is incident normally on the first refracting face of the prism of refracting angle A. The ray of light comes out at grazing emergence. If one half of the prism (shaded position) is knocked off, the same ray will
physics-General
physics-
The diagram shows five isosceles right angled prisms. A light ray incident at 90° at the first face emerges at same angle with the normal from the last face. Which of the following relations will hold regarding the refractive indices?
The diagram shows five isosceles right angled prisms. A light ray incident at 90° at the first face emerges at same angle with the normal from the last face. Which of the following relations will hold regarding the refractive indices?
physics-General
physics-
A ray incident at an angle 53° on a prism emerges at an angle at 37° as shown. If the angle of incidence is made 50°, which of the following is a possible value of the angle of emergence.
A ray incident at an angle 53° on a prism emerges at an angle at 37° as shown. If the angle of incidence is made 50°, which of the following is a possible value of the angle of emergence.
physics-General
physics-
The diagram shows a silvered equiconvex lens. An object of length 1 cm has been placed in the front of the lens. What will be the final image properties? The refractive index of the lens is and the refractive index of the medium in which the lens has been placed is 
. Both the surface have the radius R.
The diagram shows a silvered equiconvex lens. An object of length 1 cm has been placed in the front of the lens. What will be the final image properties? The refractive index of the lens is and the refractive index of the medium in which the lens has been placed is . Both the surface have the radius R.
physics-General
physics-
A concave mirror is placed on a horizontal surface and two thin uniform layers of different transparent liquids (which do not mix or interact) are formed on the reflecting surface. The refractive indices of the upper and lower liquids are 
and 
respectively. The bright point source at a height ‘d’ (d is very large in comparison to the thickness of the film) above the mirror coincides with its own final image. The radius of curvature of the reflecting surface therefore is
A concave mirror is placed on a horizontal surface and two thin uniform layers of different transparent liquids (which do not mix or interact) are formed on the reflecting surface. The refractive indices of the upper and lower liquids are and respectively. The bright point source at a height ‘d’ (d is very large in comparison to the thickness of the film) above the mirror coincides with its own final image. The radius of curvature of the reflecting surface therefore is
physics-General
physics-
Two planoconvex lenses each of focal length 10 cm & refractive index 3/2 are placed as shown. In the space left, water (R.I = 4/3) is filled. The whole arrangement is in air. The optical power of the system is (in diopters) :
Two planoconvex lenses each of focal length 10 cm & refractive index 3/2 are placed as shown. In the space left, water (R.I = 4/3) is filled. The whole arrangement is in air. The optical power of the system is (in diopters) :
physics-General
