What is a pinhole camera explain how an image is formed in a pinhole camera?
A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.
What does a pinhole camera demonstrate on what principle does it work?
Pinhole cameras rely on the fact that light travels in straight lines – a principle called the rectilinear theory of light. This makes the image appear upside down in the camera.
Does a pinhole camera form an image or a shadow of an object justify your answer?
The image formed by a pinhole camera is inverted compared to the object, but it has the same colour as the object. In addition, the image has all the details of the object. Hence, we can confirm that a pinhole camera forms an image, not a shadow.
Which thing has no shadow?
Transparent objects cannot form a shadow. They are only formed in opaque or translucent objects. If we take a glass slab, no shadow is formed because it allows light to pass through it.
What do we need in order to see a shadow?
we can easily observe the shadow of an object. But in night time, when there is no light, we are unable to observe our shadow. In night time, a light source can make a shadow visible. So, Opaque objects and a light source are the main requirements to see a shadow.
Is shadow a real image?
Shadow formation is not a real image. Because shadow is formed due to the absence of light where as the image is formed by the light due to reflection or refraction or interference or difraction etc. Shadow and images are two diffrent things.
Why the fire has no shadow?
Fire doesn’t have a shadow cause fire is itself a source of light, so the wall or obstacle you’d be expecting it’s shadow to fall on, would instead be covered by the light from the fire. Hence, fire has no shadow.
Can black fire exist?
For real: If you shine a low-pressure sodium lamp on a yellow sodium flame, the flame will be black. Flames emits light and heat, so it seems impossible to make black fire. However, you actually can make black fire by controlling the wavelengths of absorbed and emitted light.
Is a shadow two dimensional?
Shadows are just absence of light. And the surface area on which the shadow is cast exists in our 3 dimensional world and is 3 dimensional itself no matter how flat the surface is. As shadows generally appear on surfaces, they have no thickness and are therefore two-dimensional.
What color is a vampires blood?
red
Can a human turn into a vampire?
No. There is a very rare psychological condition where the individual is deluded and believes he is a vampire… But of course he is not. Vampires are creatures of mythology and folklore.
Why can’t vampires have babies TVD?
All of them come down from the lines of the originals, and the only one of those that had a biological child was klaus, who was a hybrid werewolf/vampire. TVD vampires cannot pro create naturally so the notion of pure bloods in the series is moot. The Originals weren’t born vampires, they were sired through dark magic.
Does Damon become human?
Stefan decides to take the human cure from his own veins, making him age faster and eventually, reach death. While Damon is already holding onto Katherine while waiting for the hellfire to kill both of them, Stefan injects the cure to Damon. Stefan saves Damon, who is now a human, and dies with Katherine.
Does Stefan become human?
Stefan dies as a human. As a result of indirectly betraying Damon, Stefan felt extreme guilt for unintentionally being responsible for Katherine’s capture and promised Damon that he would do everything he could to help Damon get Katherine back.
How old is Stefan Salvatore?
He is portrayed by Paul Wesley in the television series CW’s The Vampire Diaries and The Originals. Stefan Salvatore was turned into a vampire in 1864, at the age of 17, by Katerina Petrova, who also turned his brother Damon Salvatore….
| Stefan Salvatore | |
|---|---|
| Status | Deceased |
How does Damon die in Season 8?
Damon meets Cade and Stefan in the cave and Cade tries to force him to choose between the deaths of Elena or Stefan. Damon ends up choosing himself; he kills himself but is rescued by Bonnie who fights Cade for his soul. While Cade and Bonnie’s psychic powers are battling, Stefan uses the dagger on Cade and kills him.