Physics · Relativity
What does the term 'Time Dilation' refer to in modern physics?
- 1The apparent slowing down of light waves when passing through a dense optical medium
- 2The physical breakdown of atomic clocks under extreme high-temperature conditions
- 3The absolute expansion of time across the universe as it ages
- 4The difference in the elapsed time measured by two observers due to a relative velocity or gravitational difference between them✓
Correct answer
The difference in the elapsed time measured by two observers due to a relative velocity or gravitational difference between them
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