(SEM VI) THEORY EXAMINATION 2024-25 AUGMENTED & VIRTUAL REALITY

BCS062 – AUGMENTED & VIRTUAL REALITY

Time: 3 Hours | Max Marks: 70

SECTION A – Short Answer Questions

(2 × 7 = 14 marks | Attempt ALL)

Write definition + 1–2 key points

a. Difference Between Augmented Reality (AR) and Virtual Reality (VR)

AR: Overlays digital content on the real world (e.g., filters, navigation).

VR: Fully immersive virtual environment replacing the real world.

AR enhances reality, VR replaces reality.

b. Role of Immersion in Virtual Reality

Immersion refers to how deeply a user feels involved in a virtual environment.
Higher immersion improves realism, presence, and user engagement.

c. Spatial Mapping in AR

Spatial mapping is the process of scanning and understanding the physical environment so that virtual objects can be placed accurately in real-world space.

d. User Presence in VR

User presence is the psychological feeling of “being there” inside a virtual environment, achieved through visuals, sound, interaction, and motion tracking.

e. Two Key Features of Unity Used in AR/VR                    Cross-platform development

Real-time rendering with physics engine

f. Field of View (FoV) in AR/VR Headsets

FoV is the extent of the observable virtual environment visible at a given moment.
Larger FoV increases immersion.

g. Mixed Reality Continuum

The Mixed Reality Continuum describes the range between the real environment and a fully virtual environment, including AR and MR.

 SECTION B – Medium Answer Questions

(7 × 3 = 21 marks | Attempt ANY THREE)
Write concept → explanation → example/diagram

a. Motion Tracking Systems in VR Headsets

Motion tracking detects head and body movement using sensors like gyroscopes, accelerometers, and cameras.
It updates visuals in real time, enabling natural interaction and reducing motion sickness.

b. Design Considerations for AR User Interfaces

Minimal visual clutter                                       Context-aware content

Accurate alignment with real objects               Easy interaction and readability
Good UI improves usability and reduces user fatigue.

c. Applications of VR in Education

VR enables immersive learning through virtual labs, simulations, and 3D visualization.
It improves understanding, engagement, and retention by allowing experiential learning.

d. Marker-Based vs Markerless AR

Marker-Based AR: Uses QR codes or images as reference points.

Markerless AR: Uses GPS, sensors, and spatial mapping.
Example: QR-based apps vs AR navigation apps.

e. Enhancing Interactivity in AR Environment

Interactivity is improved using gesture recognition, voice commands, haptic feedback, and AI-based object interaction.

SECTION C – Attempt ANY ONE

(7 marks)

a. Working of Virtual Reality Technology

VR uses head-mounted displays, sensors, and controllers to create immersive environments.
User movements are tracked and translated into the virtual world in real time.

b. Stereoscopic Vision in VR

Two slightly different images are shown to each eye, mimicking human binocular vision.
This creates depth perception and a 3D experience.