At night the objects situated outside a brightly illuminated room are not visible through the glass windows. But if the Iights inside the room are off, external objects are visible. Explain the reason.

At night the objects situated outside a brightly illuminated room are

1.	At night the objects situated outside a brightly illuminated room are not visible through the glass windows. But if the Iights inside the room are off, external objects are visible. Explain the reason.
Answer» SOLUTION :At night from external objects enters a room through glass windows. If the bulb glows INSIDE the room, reflected light from the glass window comes of the EYES of the observer. The intensity of this reflected lightis much greater than that of the light coming from outside. So, the external objects are not visible. But if the room is MADE dark, the light coming from outside is sufficient to make the external objects visible.

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At night the objects situated outside a brightly illuminated room are not visible through the glass windows. But if the Iights inside the room are off, external objects are visible. Explain the reason.

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