Question

A light ray travelling obliquely from a denser medium to a rarer medium bends ......... the normal when it

travels obliquely from a rarer to a denser medium.

19. In case of a rectangular glasss lab, the refraction takes place at both ......... interface and interface. The

emergent ray is.........................................to the direction of incident ray.

20. The centre of curvature of a concave mirror lies in_____________________ of it.​

Answer 1

Answer:

Hi buddy

Explanation:

$\huge\boxed{\fcolorbox{green}{Red}{18. Towards}}$

$\huge\boxed{\fcolorbox{green}{Pink}{19.ka nhi pta yaar ,,, bends }}$

$\huge\boxed{\fcolorbox{green}{yellow}{20.the centre}}$

hope helpful for you

please mark as brainliest answer

Answer 2

18. towards....

20.the center....

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