the refractive index of the material of prismμ and the angle of devaition δ are given by
Sahay Sir > Question Answers > the refractive index of the material of prismμ and the angle of devaition δ are given by
If the focal length of the objective lens and the eye lens are 4 mm and 25 mm respectively in a compound microscop[e. The length of the tube is 16 cm. Find its magnifying power for relaxed eye position
12
Sep
If the focal length of the objective lens and the eye lens are 4 mm and 25 mm respectively in a compound microscop[e. The length of the tube is 16 cm. Find its magnifying power for relaxed eye position A simple telescope The light ray is incidence at angle of 60∘ on a prism of [...]
The diameter of the moon is 3.5 × 10^3 km and its distance from the earth is 3.8 × 10^5 km. It is seen by a telescope having the focal length of the objective and the eye-piece as 4 m and 10 cm respectively. The diameter of the image of the moon will be approximately
12
Sep
The diameter of the moon is 3.5 × 10^3 km and its distance from the earth is 3.8 × 10^5 km. It is seen by a telescope having the focal length of the objective and the eye-piece as 4 m and 10 cm respectively. The diameter of the image of the moon will be approximately [...]
In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye piece forms a real image of this line. The length of this image is I. The magnification of the telescope is
12
Sep
In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye piece forms a real image of this line. The length of this image is I. The magnification of the telescope is A simple telescope The light ray is incidence at angle [...]
If the focal length of objective and eye lens are 1.2 cm and 3 cm respectively and the object is put 1.25cm away from the objective lens and the final image is formed at infinity. The magnifying power of the microscope is
12
Sep
If the focal length of objective and eye lens are 1.2 cm and 3 cm respectively and the object is put 1.25cm away from the objective lens and the final image is formed at infinity. The magnifying power of the microscope is A simple telescope The light ray is incidence at angle of 60∘ on [...]
The focal length of objective and eye lens of a astronomical telescope are respectively 2m and 5cm . Final image is formed at (i) least distance of distinct vision (ii) infinity. The magnifying power in both cases will be
12
Sep
The focal length of objective and eye lens of a astronomical telescope are respectively 2m and 5cm . Final image is formed at (i) least distance of distinct vision (ii) infinity. The magnifying power in both cases will be A simple telescope The light ray is incidence at angle of 60∘ on a prism of [...]
A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays comes out from the eye lens. If the object subtends an angle 2∘ at the objective, the angular width of the image
12
Sep
A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object in such a way that parallel rays comes out from the eye lens. If the object subtends an angle 2∘ at the objective, the angular width of [...]
Read the paragraph and the figure carefully and answer the questions. The figure shows a constant deviation prism ABCD. The incident ray is PQ and the emergent ray is ST. Although it is made up of one piece of glass, it is equivalent to two 30∘−60∘−90∘ prisms and one 45∘−45−90∘ prism. The angle θ1 is the angle of incidence on face AB. The path of the ray inside the prism is indicated in the figure. For this prism, μ=2 sin θ1 The ratio of θ1/θ2 is
12
Sep
Read the paragraph and the figure carefully and answer the questions. The figure shows a constant deviation prism ABCD. The incident ray is PQ and the emergent ray is ST. Although it is made up of one piece of glass, it is equivalent to two 30∘−60∘−90∘ prisms and one 45∘−45−90∘ prism. The angle θ1 is [...]
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is
12
Sep
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is The light ray is incidence at angle of [...]
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is :
12
Sep
The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence 2A on the first surface returns back through the same path after suffering reflection at the silvered surface.The refractive index μ, of the prism is : The light ray is incidence at angle [...]
A ray of monochromatic light is incident on one refracting face of a prism of angle 75∘. It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the material of the prism is root 2, the angle of incidence on the first face of the prism is
12
Sep
A ray of monochromatic light is incident on one refracting face of a prism of angle 75∘. It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the material of the prism is root 2, the angle of incidence on the first face of [...]