SỰ TRUYỀN CỦA ÁNH SÁNG (P 31 01) Danh mục thiết bị: GSN 246 POG 465 POG 461 POG 462 KAL 60/5A Bảng từ Hộp tạo tia, 6V 20 W Màn chắn khe Màn chắn khe Dây dẫn Nguồn điện 1 1 Tiến hành thí nghiệm: Use the ray box with the rectangular opening for parallel light, a parallel light beam is emitted When diaphragm with one, two or three slits are applied,the same number of thin light beams, parallel to one another, are generated These are called light rays Turn around the ray box to produce divergent light, a divergent light beam is emitted Insert diaphragm with three slits, divergent rays of light are created Optics Panel Type | | Optics Panel Type SHADOW (P 31 02) Danh mục thiết bị: GSN 246 POG 465 POG 355.01 POG 260.02 KAL 60/5A Bảng từ Hộp tạo tia, 6V 20 W Vật tạo bóng, bán cầu 1 Mơ hình thấu kính phẳng lõm Dây dẫn Nguồn điện Tiến hành thí nghiệm: Use the ray box with the rectangular opening for divergent light Place the object for shadowing hemisphere in the divergent of light Move the object further from the ray box The object closer to the light source, the shadow of the object become larger The object further from the light source, the shadow of the object becomes smaller Optics Panel Type | | Optics Panel Type LUNAR ECLIPSE (MODEL) (P 31 03) Danh mục thiết bị: GSN 246 POG 465 POG 355.01 POG 355.02 KAL 60/5A Bảng từ Hộp tạo tia, 6V 20 W Vật tạo bóng, bán cầu Vật tạo bóng, hình trụ Dây dẫn Nguồn điện 1 Tiến hành thí nghiệm: Set up the two ray box and the object for shadowing hemisphere, representing the earth, according to the figure In position the moon (object for shadowinng, cylinder) creates a umbra and penumbra areas In position the moon enters the earth's penumbra area The appearance of its shadow changes while there is practically no change in light intensity on the moon's surface as observed from the earth In position the moon is found entirely in the earth's umbra There is a total lunar eclipse Optics Panel Type | In position only a part of the moon is touched by the earth's umbra This is termed a partial lunar eclipse Since the orbits of the moon and earth lie at an angle of approximately 5° to each other, the earth's conic umbra does not fall on the moon during every orbit The orbits of the earth and moon intersect at two nodes A lunar eclipse takes place only when sun, earth and moon and one of the nodes are aligned | Optics Panel Type SOLAR ECLIPSE (MODEL) (P 31 04) Danh mục thiết bị: GSN 246 POG 465 POG 355.01 POG 355.02 KAL 60/5A Bảng từ Hộp tạo tia, 6V 20 W Vật tạo bóng, bán cầu Vật tạo bóng, hình trụ Dây dẫn Nguồn điện Tiến hành thí nghiệm: A solar eclipse is observed when the moon's shadow falls on the earth's surface From the umbra area, always covering only a small part of the earth's surface, a total solar eclipse is observed, while a partial solar eclipse is observed in the penumbra area Move the objec for shadowing hemisphere representing the earth so that the tip of the umbra does not quite fall on the surface From the penumbra area a partial solar eclipse can be observed This appears ring-shaped when the observation area and the centers of the sun and the moon are all approximately aligned Optics Panel Type | | Optics Panel Type