Attempt the following questions.
Ravi’s digital watch stopped during a power failure. He used the position of the Sun to estimate time.
Answer variants:
Sun/shadow method
Battery watch
No
Based on estimation
Shadow change
1. What method did Ravi use?
2. What is the basic principle behind it?
3. Why is this method less accurate?
4. Can this method be used at night?
5. Can this method be used at night?