Science General

Photography and Graphics

3,108 Questions

Photography and graphics questions explore computer graphics, color grading, lighting, and cinematography techniques. These topics are often tested in technical competitive exams and multimedia recruitment tests. Use these explanations to understand the practical applications of visual design and digital editing tools.

Computer graphics techniquesPhotography lighting and colorFilm editing effectsShading and texturingCamera and lens functionsCommercial makeup and visuals

Photography and Graphics Questions

Multiple choice general knowledge

In photography, filters are used to

  1. keep dirt and grime away from the film surface

  2. modify light.

  3. keep used photons from collecting inside the camera.

  4. clean the air entering the camera through the PC terminal.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photographic filters are placed in front of the lens to modify the light entering the camera - they can change colors, reduce reflections, darken skies, or create special effects. They don't physically clean anything or deal with used photons.

Multiple choice technology programming languages

You are designing an application to be used to edit photographs. The aim of the application is to provide effects such as converting a color picture to black and white, enlarging certain areas of the print, creating a watercolor effect etc. At the moment the application is structured so that the photographic image is represented by one object, other objects represent each effect and a control object is used to co-ordinate with these objects. When the user selects the color to black and white effect it changes the state of the Color object to Black and White. This then needs to co-ordinate with the control object and apply the effect. Basically as the state of the effects objects changes it need to co-ordinate with the photographic image object.Which design pattern do you use?

  1. Chain of Responsibility

  2. Notifier

  3. Observer

  4. Mediator
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mediator centralizes communication between objects, reducing direct references. The control object coordinates between image and effects objects, preventing complex interdependencies. Chain of Responsibility passes requests along a chain, while Observer notifies subscribers automatically - neither fits the coordination scenario described.

Multiple choice technology

Why we use Auto Format for an image?

  1. To align the objects.

  2. To delete the extra space in the image.

  3. To delete the unnecessary object.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Auto Format is not used for any of the stated purposes (alignment, deleting space, or deleting objects). It typically handles format conversion or standardization, which is why 'None of the above' is correct.

Multiple choice

Why do we sprinkle fine powder on carom?

  1. To increase friction.

  2. To decrease the force used for striking.

  3. To decrease friction.

  4. To prevent the wood of carom board.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sprinkling fine powder on a carom board reduces friction between the striker and board surface, allowing pieces to slide more freely and smoothly. Increasing friction would make the game harder to play, and the powder's purpose is not force reduction or wood protection.

Multiple choice

Which of the following is the main purpose of boxing an impression?

  1. To serve as a base for cast poured

  2. To preserve the border width after border moulding

  3. To prevent distortion of the impression

  4. To preserve the height of the sulcus in the cast

  5. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main purpose of boxing an impression is to serve as a base for cast poured.

Multiple choice

Why do traffic policemen wear white uniforms with reflective surface?

  1. It looks neat.

  2. It absorbs less sunlight and it will be comfortable.

  3. To make them easily visible against dark road at night.

  4. It absorbs more sunlight and they will be comfortable.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, it is correct. The white colour and the reflective surface on it is clearly visible so we can see them at night while driving.

Multiple choice physics study of sound reverberation applications of reflection of sound multiple reflection of sound and reverberation applications of ultrasound

Why the ceiling of concert halls, cinema halls made curved?

  1. To make the hall beautiful

  2. For proper light conditions

  3. So that the sound can reach all corners properly

  4. So that the picture or the stage can be visible to each and every person.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In concert halls, cinema halls, conference halls, the ceiling are made curved, so that the sound after reflection from the curved surface reaches all corners of the hall evenly.

Multiple choice physics study of sound reverberation applications of reflection of sound applications of ultrasound

Why the ceiling of concert halls, cinema halls made curved?

  1. to make the hall beautiful.

  2. for proper light conditions.

  3. so that the sound can reach all corners properly.

  4. So that the picture or the stage can be visible to each and energy person.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In concert halls, cinema halls, conference halls, the ceiling are made curved, so that the sound after reflection from the curved surface reaches all corners of the hall evenly.

Multiple choice different modes of communication and their uses information technology communication systems physics

The purpose of dividing each frame into two field so as to transmit $50$ views of the picture per second is 

  1. To avoid flicker in the picture

  2. The fact that handling of higher frequencies is easier
  3. That $50 Hz$ is the power line frequency in India

  4. To avoid unwanted noises in the signals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This procedure is often applied in interlace scanning which helps to reduce flick (as it involves more number of views in the picture per second ) in the received image without increasing the channel bandwidth.

Multiple choice physics observing space: telescopes space research and satellites space travel space exploration and forms of light

Large aperture objective is used in telescope. Which of the following is not a function of the objective?

  1. Increasing the brightness of image.

  2. Reducing image size.

  3. Increasing field of view.

  4. Increasing intensity by gathering more light.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Large aperture objective is used in telescope as it can help in increasing the brightness of image, increasing field of view and increasing intensity by gathering more light.

Multiple choice

What is the primary purpose of using a reflector in lighting?

  1. To create shadows

  2. To reduce contrast

  3. To add fill light

  4. To block unwanted light
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A reflector is used in lighting to bounce light back onto the subject, reducing shadows and adding fill light to create a more balanced exposure.

Multiple choice

What is the primary function of the aperture in a camera lens?

  1. To control the amount of light entering the lens

  2. To focus the image on the sensor

  3. To adjust the white balance of the image

  4. To change the focal length of the lens
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The aperture is a mechanical opening in the lens that allows light to pass through and reach the sensor or film. By adjusting the aperture, photographers can control the amount of light that enters the camera, which affects the brightness of the image.

Multiple choice

What is the primary function of a camera's shutter?

  1. Adjusting focus

  2. Controlling aperture

  3. Capturing light

  4. Storing images
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The shutter in a camera controls the amount of time that light is allowed to reach the sensor or film, thus capturing the image.

Multiple choice

What is the function of a camera's autofocus system?

  1. Adjusting exposure

  2. Controlling white balance

  3. Focusing the lens automatically

  4. Storing images
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The autofocus system in a camera automatically adjusts the lens focus to ensure that the subject is sharp and in focus, even when the camera is moved or the subject is moving.

Multiple choice

What is the purpose of a camera's flash?

  1. Adjusting focus

  2. Controlling aperture

  3. Providing additional light

  4. Storing images
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A camera's flash provides additional light in low-light conditions or when shooting backlit subjects, helping to illuminate the scene and reduce shadows.