CAPE Physics Unit 1 · 2009 · Paper 1 · Question Q25
A liquid X floats in a container on top of another liquid Y. Light whose velocity is V_y strikes the boundary with an angle of incidence \theta_y. In Liquid X the angle of refraction is \theta_x and the velocity is V_x.
Which pair of statements is TRUE if the wavelength DECREASES as the light crosses the boundary?
- (A)
\theta_y > \theta_xandV_y > V_x - (B)
\theta_y > \theta_xandV_x > V_y - (C)
\theta_x > \theta_yandV_y > V_x - (D)
\theta_x > \theta_yandV_x > V_y
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