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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A horizontal ray of light passes through a prism whose apex angle is 4 and then strikes a vertical mirror M as shown in figure. For the ray to become horizontal after reflection, find the angle by which

A horizontal ray of light passes through a prism whose apex angle is 4 and then strikes a vertical mirror M as shown in figure. For the ray to become horizontal after reflection, find the angle by which

A horizontal ray of light passes through a prism whose apex angle is 4 and then strikes a vertical mirror M as shown in figure. For the ray to become horizontal after reflection find the angle by which