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प्रश्न
State whether the following statement is True or False.
Velocity of e.m. waves in vacuum is \(3 \times 10^{5}\) \(\mathrm{kms}^{-1}\).
चूक किंवा बरोबर
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उत्तर
This statement is true.
Explanation:
- All electromagnetic waves travel with the same speed in vacuum.
- 3 × 105 km/s equals 3 × 108 m/s, which is the speed of light in free space.
- Hence, the velocity of e.m. waves in vacuum is 3 × 105 km/s.
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पाठ 2: Light - Graded Assignment 2.3 [पृष्ठ १४१]
