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Which of the following statements is/are true regarding a light wave travelling from air to glass? 1. Its frequency remains unchanged. 2. Its speed changes. Select the correct answer using the codes given below: (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 |
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Answer» The correct option is: (c) Both 1 and 2 Explanation: When a light wave passes from one medium to other, its frequency remains constant but its speed and wavelength change. |
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