at an angle α 1 as shown in Fig. After that
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 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 [...]
A beam of light propagates through a medium 1 and falls onto another medium 2, at an angle α 1 as shown in Fig. After that, it propagates in medium 2 at an angle α2 as shown. The light’s wavelength in medium 1 is λ1. What is the wavelength of light in medium 2?
13
Nov
A beam of light propagates through a medium 1 and falls onto another medium 2, at an angle α 1 as shown in Fig. After that, it propagates in medium 2 at an angle α2 as shown. The light’s wavelength in medium 1 is λ1. What is the wavelength of light in medium 2? A [...]