Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Physics Optics Refraction and Reflection

Which of the following statement is true when a ray of light travels from air into oil?

1
The speed of light decreases and the ray bends towards the normal.
2
The speed of light increases and the ray bends away from the normal.
3
The speed of light increases and the ray bends towards the normal.
4
The speed of light decreases and the ray bends away from the normal.
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