We can see any object, when light reflected by that object reaches our eyes. But in the dark room, no light is reflected by the object so we are unable to see objects in dark room. If there is light present outside the room, then we can see the objects outside the room.
The objects in a dark room cannot be seen because there is no light. We can only see something when a certain amount of light falls on it. The objects outside the room can only be seen if there is light outside the room.
Some of the precautions are:
(a). Try to move to an open space.
(b). We should not take shelter under trees, buildings or overhead power lines.
(c). If travelling in a bus or...
Since each light can be switched on independently,
there are two options for each bulb (on or off)
∴Total no. of ways the bulbs can be operated= 210
This includes all the bulbs are...
In the bright sunlight, iris causes the pupil to become smaller so that only a small portion of light enters the eye and rods of the retina are also adjusted...
(d) remain standing.
Explanation:
The person will loose weight but remain standing. As no force acts on him, so according to "Newton's First Law of Motion" he will remain in his state of rest...
(d) remain standing.
Explanation:
The person will loose weight but remain standing. As no force acts on him, so according to "Newton's First Law of Motion" he will remain in his state...
The earth is looking spherical in shape. Yes, I can see the surface of the moon. The following questions arise in my mind after looking at this picture:
(i) Who look...
