Chapter 16 – Optics
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A beaker contains water up to a height h1 and kerosene of height h2 above water so that the total height of (water + kerosene) is (h1+h2) . Refractive index of water is μ1 and that of kerosene is μ2 . The apparent shift in the position of the bottom of the beaker when viewed from above is
18
Nov
A beaker contains water up to a height h1 and kerosene of height h2 above water so that the total height of (water + kerosene) is (h1+h2) . Refractive index of water is μ1 and that of kerosene is μ2 . The apparent shift in the position of the bottom of the beaker when viewed [...]
An object 2.4 m in front of a lens forms a sharp image on a film 12 cm behind the lens. A glass plate 1 cm thick, of refractive index 1.50 is interposed between lens and film with its plane faces parallel to film. At what distance (from lens) should object shifted to be in sharp focus of film?
18
Nov
An object 2.4 m in front of a lens forms a sharp image on a film 12 cm behind the lens. A glass plate 1 cm thick, of refractive index 1.50 is interposed between lens and film with its plane faces parallel to film. At what distance (from lens) should object shifted to be in [...]
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An object 2.4 m in front of a lens forms a sharp image on a film 12 cm behind the lens. A glass plate 1 cm thick ,
of refractive index 1.50 is interposed between lens and film with its plane faces parallel to film. At what distance (from lens) should object shifted to be in sharp focus of film? ,
The graph between angle of deviation (δ) and angle of incidence (i) for a triangular prism is represented by
18
Nov
The graph between angle of deviation (δ) and angle of incidence (i) for a triangular prism is represented by The graph between angle of deviation (δ) and angle of incidence (i) for a triangular prism is represented by November 18, 2020 Category: Chapter 16 - Optics , JEE Mains Physics 2002-2019 Solved Video Solutions ,
The diameter of a plano convex lens is 6cm and thickness at the centre is 3mm. If the speed of light in the material of the lens is 2×10^8m/s, what is the focal length of the lens ?
18
Nov
The diameter of a plano convex lens is 6cm and thickness at the centre is 3mm. If the speed of light in the material of the lens is 2×10^8m/s, what is the focal length of the lens ? The diameter of a plano convex lens is 6cm and thickness at the centre is 3mm. If [...]
A green light is incident from the water to the air – water interface at the critical angle (θ). Select the correct statement.
18
Nov
A green light is incident from the water to the air – water interface at the critical angle (θ). Select the correct statement. A green light is incident from the water to the air - water interface at the critical angle (θ). Select the correct statement. November 18, 2020 Category: Chapter 16 - Optics , [...]
A thin convex lens made from crown glass (μ=3/2)has focal length f. When it is measured in two different liquids having refractive indices 4/3 and 5/3. It has the focal lengths f1 and f2 respectively. The correct relation between the focal length is
18
Nov
A thin convex lens made from crown glass (μ=3/2)has focal length f. When it is measured in two different liquids having refractive indices 4/3 and 5/3. It has the focal lengths f1 and f2 respectively. The correct relation between the focal length is In figure the number of reflections it makes before emerging form the [...]
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principle leads us to conclude that as it travels, the light beam
18
Nov
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens principle leads us to conclude that as it travels, the light beam On a hot summer night the Huygens principle leads us to conclude [...]
In an experiment for determination of refractive index of glass of a prism by i−δ, plot it was found that the ray incident at angle 35∘, suffers a deviation of 40∘ and that it emerges at angle 79∘. In that case which of the following is closest to the maximum possible value of the refractive index?
18
Nov
In an experiment for determination of refractive index of glass of a prism by i−δ, plot it was found that the ray incident at angle 35∘, suffers a deviation of 40∘ and that it emerges at angle 79∘. In that case which of the following is closest to the maximum possible value of the refractive [...]
Tags:
In an experiment for determination of refractive index of glass of a prism by i−δ ,
plot it was found that the ray incident at angle 35∘ ,
suffers a deviation of 40∘ and that it emerges at angle 79∘. In that case which of the following is closest to the maximum possible value of the refractive index? ,
A diverging lens with magnitude of focal length 25cm is placed at a distance of 15cm from a converging lens of magnitude of focal length 20cm. A beam of parallel light falls on the diverging lens. The final image formed is.
18
Nov
A diverging lens with magnitude of focal length 25cm is placed at a distance of 15cm from a converging lens of magnitude of focal length 20cm. A beam of parallel light falls on the diverging lens. The final image formed is. In figure the number of reflections it makes before emerging form the other end [...]
Formation of real image using a biconvex lens is shown below: If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen ?
18
Nov
Formation of real image using a biconvex lens is shown below: If the whole set up is immersed in water without disturbing the object and the screen positions, what will one observe on the screen ? Formation of real image using a biconvex lens is shown below: If the whole set up is immersed in [...]