All questions of Direction Sense Test for UPSC CSE Exam

We all know that sun rises in East ,hence shadow falls on west

since niharika's shadow was exactly at right of nivedita then niharika face is towards north

Analysis:
To determine the direction Vimal was facing, we need to understand the concept of shadows and the position of the sun in relation to the observer and the object casting the shadow.

Explanation:
When Vimal saw Stephen's shadow to his right, it means that Stephen was walking towards the west. This is because the sun rises in the east and sets in the west. Therefore, the shadow of any object will always be towards the west in the morning.

Elaboration:
- The sun rises in the east and sets in the west. In the morning, the sun is in the eastern part of the sky.
- When Vimal saw Stephen's shadow to his right, it means that Stephen was walking towards the west.
- The shadow of an object is always opposite to the direction of the sun. Since Stephen's shadow was to the right of Vimal, it indicates that the sun was on Vimal's left side.
- If Vimal is facing towards the south, then the sun would be on his right side, casting Stephen's shadow to the left. Therefore, option C - South, is the correct answer.

Conclusion:
Based on the given information that Vimal saw Stephen's shadow to his right, we can conclude that Vimal was facing towards the south.

Understanding Ravi's Journey
Ravi's cycling journey can be visualized as a series of movements on a coordinate plane. Let's break down his movements step by step.
Step-by-Step Movements
- Starting Point: Ravi begins at his home (0, 0).
- First Movement: He cycles 10 km South.
- New Position: (0, -10)
- Second Movement: He turns right (now facing West) and cycles 5 km.
- New Position: (-5, -10)
- Third Movement: He turns right again (now facing North) and cycles 10 km.
- New Position: (-5, 0)
- Fourth Movement: He turns left (now facing West) and cycles 10 km.
- New Position: (-15, 0)
Calculating Distance to Home
To find out how far Ravi is from his starting point (0, 0), we calculate the straight-line distance from his final position (-15, 0) back to (0, 0).
Distance Formula
- The formula for distance between two points (x1, y1) and (x2, y2) is:
Distance = √((x2 - x1)² + (y2 - y1)²)
- Applying Ravi's coordinates:
Distance = √((0 - (-15))² + (0 - 0)²)
Distance = √(15² + 0²)
Distance = √225
Distance = 15 km
Conclusion
Ravi is 15 km away from his home. Therefore, the correct answer is option 'B' – he will have to cycle 15 km to reach his home straight.

Understanding the question:
The question provides information about the distances and directions taken during a journey. The final direction is given, and we need to determine the starting direction.

Given information:
- The journey consists of three parts:
1. Walking 6 km
2. Turning right and walking 2 km
3. Turning left and walking 10 km
- The final direction is North.

Analysis:
To determine the starting direction, we need to track the changes in direction during the journey and calculate the net change.

Step-by-step approach:
1. Start by assuming the initial direction as North.
2. Walking 6 km in the initial direction (North) does not change the direction.
3. Turning right after walking 6 km means we are now facing East.
4. Walking 2 km in the new direction (East) does not change the direction.
5. Turning left after walking 2 km means we are now facing North again.
6. Walking 10 km in the new direction (North) does not change the direction.
7. The final direction is also North.

Conclusion:
Based on the given information and the analysis above, we can conclude that the starting direction was North. Hence, the correct answer is option 'B' - North.

Explanation:

Given Information:
- Hemant started from his house in the east
- He came to a crossing where the road to the left ends in a theatre, and straight ahead is the hospital

Direction of the University:
- Since Hemant started from his house in the east, and the road to the left ends in a theatre, we can assume that he is facing north at the crossing.
- Therefore, the direction of the university would be to his left, which is towards the west.

Conclusion:
- The university is located in the west direction from the crossing where Hemant is standing.

Therefore, the correct answer is option 'A) North'.