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Two ideal batteries having emf E1 and E2 are connected as shown in figure. The values of resistances are chosen in such a way that ammeter reading is zero. The reading of voltmeter will be
15
Nov
Two ideal batteries having emf E1 and E2 are connected as shown in figure. The values of resistances are chosen in such a way that ammeter reading is zero. The reading of voltmeter will be Two ideal batteries having emf E1 and E2 are connected as shown in figure. The values of resistances are chosen [...]
In the manufacture of metallic sodium by the fused salt electrolysis (Down’s process) a small amount of calcium chloride is added to
15
Nov
In the manufacture of metallic sodium by the fused salt electrolysis (Down’s process) a small amount of calcium chloride is added to In the manufacture of metallic sodium by the fused salt electrolysis (Down's process) a small amount of calcium chloride is added to November 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Which of the following circuits (figure ) gives the correct value of resistance, when computen by using R = V/I where V and I are voltmeter and ammeter readings , respectively ? The meters are not ideal.
15
Nov
Which of the following circuits (figure ) gives the correct value of resistance, when computen by using R = V/I where V and I are voltmeter and ammeter readings , respectively ? The meters are not ideal. respectively ? The meters are not ideal. when computen by using R = V/I where V and I [...]
A ray of light falls on a transparent sphere with center at C as shown in Figure . The ray emerges from the sphere parallel to line AB. Find the refractive index of the sphere.
13
Nov
A ray of light falls on a transparent sphere with center at C as shown in Figure . The ray emerges from the sphere parallel to line AB. Find the refractive index of the sphere. A ray of light falls on a transparent sphere with center at C as shown in Figure . The ray [...]
A plastic hemisphere has a radius of curvature of 8cm and an index of refraction of 1.6 . On the axis halfway between the plane surface and the spherical one (4cm from each ) is a small object O. The distance between the two images when viewed along the axis from the two sides of the hemisphere is approximately .
13
Nov
A plastic hemisphere has a radius of curvature of 8cm and an index of refraction of 1.6 . On the axis halfway between the plane surface and the spherical one (4cm from each ) is a small object O. The distance between the two images when viewed along the axis from the two sides of [...]
A lens forms a real image of an object. The distance from the object to the lens is x cm and that from the lens to the image is y cm. The graph shows the variation of y with x. It can be deduced that the lens is
13
Nov
A lens forms a real image of an object. The distance from the object to the lens is x cm and that from the lens to the image is y cm. The graph shows the variation of y with x. It can be deduced that the lens is A beam of light propagates through a [...]
Two thin lenses are placed 5cm apart along the same axis and illuminated with a beam of light parallel to that axis. The first lens in the path of the beam is a converging lens of focal length 10cm whereas the second is a diverging lens of focal length 5cm. If the second lens if now moved toward the first, the emergent light
13
Nov
Two thin lenses are placed 5cm apart along the same axis and illuminated with a beam of light parallel to that axis. The first lens in the path of the beam is a converging lens of focal length 10cm whereas the second is a diverging lens of focal length 5cm. If the second lens if [...]
A plano-convex lens when silvered on the plane side behaves like a concave mirror of focal length 60cm. However, when silvered on the convex side, it behaves like a concave mirror of focal length 20cm.Then, the refractive index of the lens is
13
Nov
A plano-convex lens when silvered on the plane side behaves like a concave mirror of focal length 60cm. However, when silvered on the convex side, it behaves like a concave mirror of focal length 20cm.Then, the refractive index of the lens is A plano-convex lens when silvered on the plane side behaves like a concave [...]
A cube of side 2m is placed in front of a concave mirror of focal length 1m with its face A at a distance of 3m and face B at a distance of 5m form the mirror. The distance between the images of faces A and B and heights of images of A and B are , respectively,
13
Nov
A cube of side 2m is placed in front of a concave mirror of focal length 1m with its face A at a distance of 3m and face B at a distance of 5m form the mirror. The distance between the images of faces A and B and heights of images of A and B [...]
What is the angle of incidence for an equilateral prism of refractive index root 3 so that the ray is parallel to the base inside the prism?
13
Nov
What is the angle of incidence for an equilateral prism of refractive index root 3 so that the ray is parallel to the base inside the prism? What is the angle of incidence for an equilateral prism of refractive index root 3 so that the ray is parallel to the base inside the prism? November [...]