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Subject: Science, asked on 19/6/16

C​Can the person below see the torch?

Subject: Science, asked on 1/6/16

Difference and eg of random and non periodic motion
 

Subject: Science, asked on 1/6/16

Is anything in circular motion in periodic motion also ?

Subject: Science, asked on 1/6/16

what are the examples of virtual image image i mean what kind of image example, how can we get a virtual image? what is convergent and divergent ray not understood?
 

Subject: Science, asked on 24/5/16

do fishes cast shadows in water?

Subject: Science, asked on 20/4/16

why does  light travel in a straight line?

Subject: Science, asked on 9/4/16

what is a pinhole camera ? who invented it?
 

Subject: Science, asked on 7/4/16

people say that earth will destroy very soon why?

Subject: Science, asked on 28/3/16

we know that we need a light source,an opaque object and a screen to see the paticular object's 
shadow . But my question is that where is the shadow of a plane's or even a bird's shadow in the ground???

Subject: Science, asked on 10/3/16

Name the principle, which is the reason behind the working of a pinhole camera, formation of  a shadow and formation of an image. Define this principle.

Subject: Science, asked on 10/3/16

why does moon behaves as a cold, non-luminous mirror?

Subject: Science, asked on 10/3/16

What is the souurce of light produced by stars

Subject: Science, asked on 7/3/16

when is a red shadow formed

Subject: Science, asked on 6/3/16

Why does moon shines if it is non-luminous then also?

Subject: Science, asked on 4/3/16

Radha was doing an experiment.She used different sources of light such as Bulb,Torch, Tube light and a Candle to form the shadow of the same object.The object was always kept at the same distance from the light source and the wall(screen).Would the size and the shape of the object be the same in each case ???
 
Why or Why Not ???

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