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What is the difference between shadows and images?
Write difference between Transparent , Translucent and Opaque objects?
What the conditions are requried for formation of the shadow
How to make pinhole camera?
write an activity to show light travels in straight line
What is the principle of a pinhole camera?
State three charateristics of the image formed in the pinhole camera .
Show a diagram.
Give the principle,construction and working of a pinhole camera.
give 4-5 examples of transparent, translucent and opaque
How To Make A Pin Hole Camera?
what changes will take place in the image formed on the pinhole camera if the tissue paper screen is moved away from the pinhole ?
We can't see the shadow of a bird or an aeroplane flying high up in the air, because:
a. the umbra doesn't fall on the ground
b. the penumbra doesn't fall on the ground
c. the umbra is very faint
d. no shadows are formed for flying objects
Is a wire mesh a transparent, translucent or opaque object?
What is irregular reflection?
how does light help us to see things ?
can you also explain the difference between convergent beam , divergent beam , parallel beam and a ray
in a pinhole camera why is the image formed upside down
Does the flame of gas stove emit light? Explain.
explain construction &working of a pinhole camera
Moon appears bright at night. Is it luminous or non- luminous body? Give reason.
How does a pinhole camera works ?
skin is translucent transparent or opaque
and hand is translucent transparent or opaque
Q.1 How does the light travel from one point to the other?
Q.2 Give one example of living thing which emits light ?
These objects allow light to pass through them.
These objects allow light to pass through them partially.
These objects do not allow light to pass through them.
One can clearly see through transparent objects.
One can see through translucent objects but not very clearly.
One cannot see through opaque objects.
Transparent objects do not cast shadows because they do not block light.
Translucent objects cast faint shadows as they block light partially.
Opaque objects cast dark shadows as they block light completely.
Why is an image not formed on rough surface ?
Under `what curcumstances, a red shadow can be formed?
how can we make a kaleidoscope ?
What are opeque, translusent & transparent objects
can an object form two or more shadows at the same time ? How ?
The colour of the shadow depends on the colour of the object . Is it True or False
What are the type of image formed in Cinema screen?
how is hthe shape nad size of ashasow affected,if coloured light is used instead of white light?
why is the shadow of an object formed opposite to the direction of light source
When is the shadow of the box the shortest, when the long side is pointed towards the sun or when the short side is pointing towards the sun?
what is a periscope
what does virtual mean
With the help of a diagram explain
1). Solar Eclipse.
2). Lunar Eclipse
under what circumstances red shadow can be formed
if you are standing in an open field at 12 noon,what kind of shadow would you see of yourself?
We see the sun rising 8 1/4 minutes after it has actually risen .Why ?
A solid, transparent sphere has a small, opaque dot at its centre. When observed from outside, the apparent position of the dot will be ?
Pls give ans with explanation
what is a periscope?
is cellophane opaque or transperent or translucent
why are we not able to see the shadow of bird when it flying uu in the sky ? why are able
to see it when it is near to the ground?
A girl is 20 cm away from a plane mirror. If she moves few steps closer to the mirror, what will happen to the image size in the mirror and why ?
how does sun get light?
what is the difference between shadow and image
why is shadow of an object formed in the direction opposite to the sideof light source?why should we not look directly at the sun through pinhole camera?
1). A transparent object does not form a clear shadow. Write reason
In a completely dark room if you hold up a mirror in front of you will you see the reflection of yourself in the mirror?
is our palm (or hand) a opaque or translucent organ?? because when we take it near a torch light can pass through it patially...
so how will it be classified?
write the properties of shadow.
which type of object tracing paper is? (opaque/ transparent/ translucent)
under what circumstances can a red shadow be formed?
If light is invisible , how does the surrounding become visible ?
how can we make a periscope
what is butter paper?
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