Part 2
The radius of curvature of the convex surface of a thin plano-convex lens is 15 cm and the refractive index of its material is 1.6. The power of the lens is
17
Nov
The radius of curvature of the convex surface of a thin plano-convex lens is 15 cm and the refractive index of its material is 1.6. The power of the lens is The radius of curvature of the convex surface of a thin plano-convex lens is 15 cm and the refractive index of its material is [...]
The focal length of a glass lens in air is 10 cm. Its focal length in water will be (μg = 1.5 and μw = 1.33)
17
Nov
The focal length of a glass lens in air is 10 cm. Its focal length in water will be (μg = 1.5 and μw = 1.33) The focal length of a glass lens in air is 10 cm. Its focal length in water will be (μg = 1.5 and μw = 1.33) November 17, 2020 [...]
A ray of light falls on the surface of a spherical glass paper weight making an angle α with the normal and is refracted in the medium at an angle β. The angle of deviation of the emergent ray from the direction of the incident ray is :
17
Nov
A ray of light falls on the surface of a spherical glass paper weight making an angle α with the normal and is refracted in the medium at an angle β. The angle of deviation of the emergent ray from the direction of the incident ray is : A point source of light at the [...]
An air bubble in sphere having 4 cm diameter appears 1cm from surface nearest to eye when loaded along diameter. If aμg = 1.5, the distance of bubble from refracting surface is?
17
Nov
An air bubble in sphere having 4 cm diameter appears 1cm from surface nearest to eye when loaded along diameter. If aμg = 1.5, the distance of bubble from refracting surface is? An air bubble in sphere having 4 cm diameter appears 1cm from surface nearest to eye when loaded along diameter. If aμg = [...]
A glass hemisphere of radius 0.04 m and refractive index of the material 1.6 is placed centrally over cross mark on a paper (i) with the flat face, (ii) with the curved face in contact with the paper. In each case, the cross mark is viewed directly from above. The position of the images will be
17
Nov
A glass hemisphere of radius 0.04 m and refractive index of the material 1.6 is placed centrally over cross mark on a paper (i) with the flat face, (ii) with the curved face in contact with the paper. In each case, the cross mark is viewed directly from above. The position of the images will [...]
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(ii) with the curved face in contact with the paper. In each case ,
A glass hemisphere of radius 0.04 m and refractive index of the material 1.6 is placed centrally over cross mark on a paper (i) with the flat face ,
the cross mark is viewed directly from above. The position of the images will be ,
Figure shows figure three transparent media of refractive indices `u_1, u_2 and u_3`. A point object O is placed in the medium `u_2`. If the entire medium on the right of the spherical surface has refractive index `u_1`, the image forms at O. If this entire medium has refractive index `u_3` the image form at O”. In the situation shown
17
Nov
Figure shows figure three transparent media of refractive indices `u_1, u_2 and u_3`. A point object O is placed in the medium `u_2`. If the entire medium on the right of the spherical surface has refractive index `u_1`, the image forms at O. If this entire medium has refractive index `u_3` the image form at [...]
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Figure shows figure three transparent media of refractive indices `u_1 ,
the image forms at O. If this entire medium has refractive index `u_3` the image form at O''. In the situation shown ,
u_2 and u_3`. A point object O is placed in the medium `u_2`. If the entire medium on the right of the spherical surface has refractive index `u_1` ,
A spherical surface of radius of curvature R, separates air (refractive index 1.0) from glass (refractive index 1.5). The centre of curvature is in the glass. A point object P placed in air is found to have a real image Q in the glass. The line PQ cuts the surface at a point O and PO = OQ. The distance PO is equal to
17
Nov
A spherical surface of radius of curvature R, separates air (refractive index 1.0) from glass (refractive index 1.5). The centre of curvature is in the glass. A point object P placed in air is found to have a real image Q in the glass. The line PQ cuts the surface at a point O and [...]
A point object O is kept at a distance OP=u The radius of curvature of the spherical surface APB is CP=R The refractive index of the media are n1 and n2 which are as shown in the diagram . Then,
17
Nov
A point object O is kept at a distance OP=u The radius of curvature of the spherical surface APB is CP=R The refractive index of the media are n1 and n2 which are as shown in the diagram . Then, A point object O is kept at a distance OP=u The radius of curvature of [...]
A point object O is placed in front of a glass rod having a spherical end of radius of curvature 30 cm. The image would be formed at :
17
Nov
A point object O is placed in front of a glass rod having a spherical end of radius of curvature 30 cm. The image would be formed at : A point object O is placed in front of a glass rod having a spherical end of radius of curvature 30 cm. The image would be [...]
A point source of light at the surface of a sphere causes a parallel beam of light to emerge from the opposite surface of the sphere. The refractive index of the material of the sphere is?
17
Nov
A point source of light at the surface of a sphere causes a parallel beam of light to emerge from the opposite surface of the sphere. The refractive index of the material of the sphere is? A point source of light at the surface of a sphere causes a parallel beam of light to emerge [...]