1) Which of the following represents the first law of refraction of light? a) The angle of incidence equals the angle of reflection b) The incident ray, refracted ray, and normal lie in the same plane c) Light always bends towards the normal d) Light travels in a circular path 2) In refraction, the ratio of sin i / sin r (angle of incidence/angle of refraction) is called.. a) Reflection coefficient b) Critical angle c) Brewster’s angle d) Snell’s law 3) The plane containing the incident ray and the refracted ray is called.. a) Normal plane b) Plane of incidence c) Reflective plane d) Horizontal plane 4) The plane containing the incident ray and the refracted ray is called.. a) Normal plane  b) Reflective plane c) Plane of incidence d) Horizontal plane 5) Which statement correctly expresses Snell’s law? a) sin i = sin r b) i × r = constant c) i = r d) sin i / sin r = n2/n1 6) The ratio sin i / sin r is constant for.. a) Particular pair of media b) All media c) Vacuum only d) Glass only 7) In the law of refraction, if n1 sin i = n2 sin r, then.. a) i = r b) Light does not bend c) n1/n2 = sin r / sin i d) Reflection occurs 8) Light passes from glass to water. If angle of incidence is 40°, angle of refraction is 50°, what is sin i / sin r? a) 0.77 b) 0.6 c) 1 d) 1.2 9) If the incident ray, refracted ray, and normal do not lie in the same plane, which law is violated? a) Reflection b) None c) Conservation of energy d) Refraction 10) Which statement is correct according to the laws of refraction? a) The incident ray, the reflected ray, and the normal lie in the same plane b) The incident ray, the refracted ray, and the normal lie in the same plane c) The incident ray, refracted ray, and reflected ray form different planes d) Only the refracted ray lies in the plane of incidence

Verify the laws of refraction of light

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?