English, asked by 918618525310, 2 months ago

if the radius of Carvture of a lens is 30cm the what is its focal length? 5 in the experiment of refraction on through a glass slab the angle of incidence should by less then 90°why?

Answers

Answered by gouravyuuvra3

Explanation:

The radius of curvature of the mirror is: ... (c) 30 cm ... A man is standing at such a distance from the wall that he can see ... through a rectangular glass slab for different angles of incidence

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if the radius of Carvture of a lens is 30cm the what is its focal length? 5 in the experiment of refraction on through a glass slab the angle of incidence should by less then 90°why?​

Answers

if the radius of Carvture of a lens is 30cm the what is its focal length? 5 in the experiment of refraction on through a glass slab the angle of incidence should by less then 90°why?