Table of Contents
- 1 What happens when you increase the distance between the pinhole and the screen in a pinhole camera?
- 2 What happens to the image produced by a pinhole camera when you move the back?
- 3 What is the effect of moving the pinhole camera closer to the object?
- 4 How far must an object be from a concave mirror if the image formed is to be inverted?
What happens when you increase the distance between the pinhole and the screen in a pinhole camera?
Pinhole cameras use the principle of rectilinear propagation of light. If the distance between the pinhole and screen is increased, the image size will increase and the image however will get less bright since the light spreads over a large area.
How is the image formed in a pinhole camera Affected I the distance of screen from the pinhole increases II the distance of the object from the pinhole increases?
The hole is bigger than a pinhole, the image on the screen will be blurred because a bigger hole is equivalent to a large number of pinholes. The luminous object is moved towards the pinhole the size of the image is increases. When the length of the pinhole camera is increased, the size of the image increases.
What is the effect on the image produced by the camera when the object distance is doubled?
image height = (object height * length of camera)/object distance) = (50 * 20)/200 = 10/2 = 5cm, so if the object distance is double by say n, then height of the image formed is divided by that factor n. So M = image height/object height = 5/50 = 0.1. This implies that M is reduced.
What happens to the image produced by a pinhole camera when you move the back?
If the back wall of the pinhole camera is moved closer to the pin hole, the light rays passing through the pin hole will be catches on the film at a shorter distance as compared to the original distance. Therefore we observe an image of small size with high intensity than the initial image.
How does moving the pinhole camera closer and farther away from the light sources affect the image?
Moving the film closer to the pinhole will result in a wide angle field of view and shorter exposure time. Moving the film farther away from the pinhole will result in a telephoto or narrow-angle view and longer exposure time.
How does distance affect a pinhole camera?
Answer: As the distance between the object and the pinhole decreases, the size of the image gets bigger. If the distance is increased, the image will become smaller.
What is the effect of moving the pinhole camera closer to the object?
How does a change in the distance of the object from a pinhole camera affect the size of the image?
What happens to the image produced by a convex lens when you move the object farther from the center of curvature Brainly?
When at Centre of Curvature the size of image is same as that of object. When away from Centre of Curvature the image size again decreases gradually.
How far must an object be from a concave mirror if the image formed is to be inverted?
one focal length
Only a concave mirror can be used to produce an inverted image; and this only occurs if the object is located at a position of more than one focal length from the concave mirror.
What affects focal distance?
The focal length of a lens is determined when the lens is focused at infinity. The longer the focal length, the narrower the angle of view and the higher the magnification. The shorter the focal length, the wider the angle of view and the lower the magnification.