Photography Techniques and Settings

Deep Zoom in Silverlight uses multi-resolution image pyramids (256x256 tiles) for performance, enabling fast initial load and smooth animations. Statement B claims Deep Zoom takes more time to load initially for large images, which contradicts the core purpose of Deep Zoom - it's specifically designed to load quickly by only loading necessary tiles at the current zoom level, not the entire large image.

In a camera, focusing adjusts the lens-to-sensor distance to satisfy the lens equation 1/f = 1/u + 1/v. The lens must be positioned so that the image forms precisely on the sensor/film. Moving the lens changes the image distance to achieve sharp focus at different object distances.

Resolution is determined by the number of pixels or lines a display can render, which is influenced by bandwidth and scan rates. Screen size refers to physical dimensions and does not inherently dictate the resolution.

SARFAS  is an optical technique that increases the sensitivity of standard optical microscope to a point at which it becomes possible to directly visualise nanometric films.

This is the correct option. Image in a pinhole camera shows all details of an object.

A pinhole camera is a simple camera without a lens but with a tiny aperture, a 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.

All statements are correct: a large hole causes blurring (Statement I), increasing object distance decreases image size (Statement II), and increasing screen distance makes the image larger but dimmer/blurred (Statement III).

If the size of the hole increases the image will be blurred as several 
images are formed which overlap each other

If image is enlarged, $k>1.$
If image size does not change, then $k=1.$
If image size is reduced, $k<1.$

Ratio of the size of the image to the size of the object is known as magnification. It is given by $m = v/u$

In bright sunlight, there is an abundance of light. To prevent overexposure, one must decrease the aperture (use a higher f-stop number) to restrict the amount of light entering the camera.

A shorter (faster) shutter speed captures the subject for a smaller fraction of time, which freezes motion and prevents blur in the resulting image.

To open the shutter 2 times longer than 1/200 of a second, you need to double the time duration. Doubling the time (1/200 * 2) results in 2/200, which simplifies to 1/100 of a second.

Shutter speed controls the duration that the camera's sensor or film is exposed to light. By adjusting this, the photographer directly influences the total light reaching the medium.