When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings.

Pinnately Compound Leaf Palmately Compound Leaf The leaflets are attached to the common axis, called rachis. The leaflets are attached at a common point on the leaf stalk. Examples include neem...

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...

Given P=+ 1.5D As P=1/f (in metre) , Focal length, f =1/P=1/1.5=0.667m=66.7cm As power of prescribed lens is positive, the lens is converging (or convex) lens.

Cotton ball initially floats and then sinks as it absorbs water.

Why are u not taking the sign of u of eyepiece... If u take the minus sign sign into account the answer changes....

No, this stone dust would not be causing any harm to them as they have wrapped a cloth around their nose and mouth.

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...

Resources are vital for human survival and it was believed that resources are free gift of nature. The indiscriminate use of resources led to the following problems: (i) To satisfy the...