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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.
why is the shadow of an object formed opposite to the direction of light source
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?
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
kindly explain.........
What is irregular reflection?
how does light help us to see things ?
Moon appears bright at night. Is it luminous or non- luminous body? Give reason.
in a pinhole camera why is the image formed upside down
can you also explain the difference between convergent beam , divergent beam , parallel beam and a ray
Does the flame of gas stove emit light? Explain.
explain construction &working of a pinhole camera
How does a pinhole camera works ?
Transparent objects
Translucent objects
Opaque objects
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.
Under `what curcumstances, a red shadow can be formed?
Why is an image not formed on rough surface ?
how can we make a kaleidoscope ?
which type of object pen is? (opaque/ transparent/ translucent)
can an object form two or more shadows at the same time ? How ?
What are the type of image formed in Cinema screen?
what is a periscope
what does virtual mean
under what circumstances red shadow can be formed
which object reflection gives us clear images
If light is invisible , how does the surrounding become visible ?
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?
how does sun get light?
what is the difference between shadow and image
A plane mirror reflects a pencil of light to form a real image. Then the pencil of light incident on the mirror is
(a) Parallel (b) convergent (c)divergent (d) none of these
Please give answer with explanation
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?
skin is translucent transparent or opaque
and hand is translucent transparent or opaque
write the properties of shadow.
which type of object tracing paper is? (opaque/ transparent/ translucent)
under what circumstances can a red shadow be formed?
how can we make a periscope
what is butter paper?
instead of tracing paper can we use a butter paper for the pinhole camera?
should'nt we paint black paint inside the pin-hole camera as black is supposed to be a colour which light cannot pass throgh it?
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Syllabus
What is the difference between shadows and images?
Write difference between Transparent , Translucent and Opaque objects?
(a)divergent rays
(b)convergent rays
(c)parallel rays
(d)intersecting rays
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 about sandpaper??
What is the principle of a pinhole camera?
State three charateristics of the image formed in the pinhole camera .
Show a diagram.
why is the shadow of an object formed opposite to the direction of light source
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?
(1) The image formed in pinhole camera is both erect and inverted.
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
kindly explain.........
What is irregular reflection?
how does light help us to see things ?
Moon appears bright at night. Is it luminous or non- luminous body? Give reason.
in a pinhole camera why is the image formed upside down
can you also explain the difference between convergent beam , divergent beam , parallel beam and a ray
Does the flame of gas stove emit light? Explain.
Ans . 1) Concave mirror 2) Convex mirror 3) Plane mirror 4) Lens
explain construction &working of a pinhole camera
(a). A plane mirror
(b) Still water in a lake
(c) A leather bag
(d) None of these
How does a pinhole camera works ?
Transparent objects
Translucent objects
Opaque objects
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.
Under `what curcumstances, a red shadow can be formed?
Why is an image not formed on rough surface ?
how can we make a kaleidoscope ?
which type of object pen is? (opaque/ transparent/ translucent)
can an object form two or more shadows at the same time ? How ?
What are the type of image formed in Cinema screen?
what is a periscope
what does virtual mean
under what circumstances red shadow can be formed
which object reflection gives us clear images
If light is invisible , how does the surrounding become visible ?
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 camera flash is used in front of a mirror to take a photograph of the image of an object. The photographic image formed is
how does sun get light?
what is the difference between shadow and image
A plane mirror reflects a pencil of light to form a real image. Then the pencil of light incident on the mirror is
(a) Parallel (b) convergent (c)divergent (d) none of these
Please give answer with explanation
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?
skin is translucent transparent or opaque
and hand is translucent transparent or opaque
write the properties of shadow.
which type of object tracing paper is? (opaque/ transparent/ translucent)
a.What is the size of the boy's image on the mirror?
b.What is the distance between the boy's image and the mirror?
c.What is the distance between boy and his image?
under what circumstances can a red shadow be formed?
how can we make a periscope
what is butter paper?
instead of tracing paper can we use a butter paper for the pinhole camera?
should'nt we paint black paint inside the pin-hole camera as black is supposed to be a colour which light cannot pass throgh it?