Question

Хееееееелп ми Задание #1 Вопрос: Если предположить, что предмет полностью поглощает свет, тогда: Выберите один из 4 вариантов ответа: 1) Этот предмет невидимый 2) Этот предмет не отбрасывает тень 3) Этот предмет прозрачный 4) Никакой вариант ответа не подходит Задание #2 Вопрос: Если поверхность абсолютно гладкая то: Выберите несколько из 4 вариантов ответа: 1) Падающий луч всегда отражается под одним и тем же углом 2) Падающий луч отражается под углом, под которым упал 3) Эта поверхность в физическом смысле даёт зеркальное отражение 4) Падающий луч при падении на эту поверхность не преломляется

Answer 1

Задание #1
Вопрос:
Если предположить, что предмет полностью поглощает свет, тогда:
ответ: 2

Задание #2
Вопрос:
Если поверхность абсолютно гладкая то:
ответ: 3

Answer 2

Task #1: If an object completely absorbs light, then:

If we assume that an object completely absorbs light, then we can determine its properties based on this assumption. Let's evaluate the given options and determine which one is correct:

1) This object is invisible: If an object absorbs all light, it would not reflect or scatter any light, making it invisible to our eyes. This option seems plausible.

2) This object does not cast a shadow: If an object absorbs all light, it would not reflect or scatter any light to create a shadow. This option also seems plausible.

3) This object is transparent: Transparency refers to the property of allowing light to pass through without being absorbed or scattered. If an object absorbs all light, it cannot be transparent. Therefore, this option is unlikely.

4) None of the above options are correct: This option seems unlikely as the first two options appear to be plausible.

Based on the given information, options 1 and 2 seem to be the most likely answers. However, without further context or additional information, it is difficult to determine the exact properties of an object that completely absorbs light.

Task #2: If a surface is perfectly smooth, then:

If we assume that a surface is perfectly smooth, we can make some observations about its behavior. Let's evaluate the given options and determine which ones are correct:

1) The incident ray always reflects at the same angle: According to the law of reflection, when light strikes a smooth surface, it reflects at an angle equal to the angle of incidence. Therefore, this option is correct.

2) The incident ray reflects at the angle at which it fell: This option is incorrect. The angle of reflection is equal to the angle of incidence, not the angle at which the incident ray fell.

3) The surface provides a mirror-like reflection: A perfectly smooth surface can provide a mirror-like reflection, as it reflects light rays without scattering or diffusing them. Therefore, this option is correct.

4) The incident ray does not undergo refraction when it falls on this surface: Refraction occurs when light passes from one medium to another with a different refractive index. The smoothness of a surface does not affect the refraction of light. Therefore, this option is incorrect.

Based on the given information, options 1 and 3 are correct. A perfectly smooth surface reflects light rays at the same angle as the incident rays, and it can provide a mirror-like reflection.

Please let me know if there is anything else I can help you with!