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A lens forms a virtual, diminished image of an object placed at 2m from it. The size of image is half of the object. Which one of the following statements is correct regarding the nature and focal length of the lens ?
15
Nov
A lens forms a virtual, diminished image of an object placed at 2m from it. The size of image is half of the object. Which one of the following statements is correct regarding the nature and focal length of the lens ? A lens forms a virtual diminished image of an object placed at 2m [...]
A cubic container is filled with a liquid whose refractive index increases linearly from top to bottom. Which of the following represents the path of a ray of light inside the liquid?
15
Nov
A cubic container is filled with a liquid whose refractive index increases linearly from top to bottom. Which of the following represents the path of a ray of light inside the liquid? A cubic container is filled with a liquid whose refractive index increases linearly from top to bottom. Which of the following represents the [...]
A convex lens of focal length 10cm is painted black at the middle portion as shown in figure . An object is placed at a distance 20cm from the lens. Then,
15
Nov
A convex lens of focal length 10cm is painted black at the middle portion as shown in figure . An object is placed at a distance 20cm from the lens. Then, A convex lens of focal length 10cm is painted black at the middle portion as shown in figure . An object is placed at [...]
A point object is placed at a distance of 25 cm from a convex lens of focal length 20 cm. If a glass slab of thickness t and refractive index 1.5 is inserted between the lens and the object, the image is formed at infinity. The thickness t is
15
Nov
A point object is placed at a distance of 25 cm from a convex lens of focal length 20 cm. If a glass slab of thickness t and refractive index 1.5 is inserted between the lens and the object, the image is formed at infinity. The thickness t is A point object is placed at [...]
A parallel beam of light is incident on the system of two convex lenses of focal lengths f1 = 20 cm and f2 = 10 cm. What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated.
15
Nov
A parallel beam of light is incident on the system of two convex lenses of focal lengths f1 = 20 cm and f2 = 10 cm. What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated. Angle of minimum deviation is equal to the angle [...]
A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different material of refractive indices μ1 and μ2 and R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is :
15
Nov
A plano-convex lens fits exactly into a plano-concave lens. Their plane surfaces are parallel to each other. If the lenses are made of different material of refractive indices μ1 and μ2 and R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is : Angle of [...]
Find the reading of the ideal ammeter connected in the given circuit . Assume that the cells have negligible internal resistance.
15
Nov
Find the reading of the ideal ammeter connected in the given circuit . Assume that the cells have negligible internal resistance. Find the reading of the ideal ammeter connected in the given circuit . Assume that the cells have negligible internal resistance. November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
Sodium when heated in a current of dry ammonia gives (a) Sodium nitrate (b) Sodium hydride (c) Sodium amide
15
Nov
Sodium when heated in a current of dry ammonia gives (a) Sodium nitrate (b) Sodium hydride (c) Sodium amide Sodium when heated in a current of dry ammonia gives (a) Sodium nitrate (b) Sodium hydride (c) Sodium amide November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The colour of the precipitate produced by adding NaOH solution to HgCl2 is (a) Yellow (b) Black (c) Brown (d) White
15
Nov
The colour of the precipitate produced by adding NaOH solution to HgCl2 is (a) Yellow (b) Black (c) Brown (d) White The colour of the precipitate produced by adding NaOH solution to HgCl2 is (a) Yellow (b) Black (c) Brown (d) White November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
During the electrolysis of fused sodium chloride, the anodic reaction is (a) Reduction of sodium ions (b) Oxidation of sodium ions
15
Nov
During the electrolysis of fused sodium chloride, the anodic reaction is (a) Reduction of sodium ions (b) Oxidation of sodium ions During the electrolysis of fused sodium chloride the anodic reaction is (a) Reduction of sodium ions (b) Oxidation of sodium ions November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]