If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction r and v respectively, which of the following is correct? A. r = v B. r > v C. r = 1/v D. r < v

Q. Beams of red, green and violet light are falling on the refracting face of a thin prism, all at same angle of incidence. If their angles of deviation are ${\theta }_1,{\theta }_2$ and ${\theta }_3$ respectively, then

Q. A Ray of light is incident in medium one on a surface that separates medium one from medium to let V1 and V2 represent the velocity of light in medium one and medium to respective also let n12 and n21 respect the refractive index of medium one with respect to medium 2 and refractive index of medium two with respect to medium 1 respectively. if i and r denote the angles of incidence and refraction then
a)sin i/sin r=n12=v2/v1
b)sin i/sin r=n21=v2/v1
c)sin i/sin r=n12=v1/v2
d)sin i/sin r=n21=vi/v2

Q. A ray of light is incident in medium $1$ on a surface that separates medium $1$ from medium $2$. Let $v_1$ and $v_2$ represent the velocity of light in medium $1$ and medium $2$ respective. Also let $n_{12}$ and $n_{21}$ represent the refractive index of medium $1$ with respect to medium $2$ and refractive index of medium $2$ with respect to medium $1$, respectively. If $i$ and $r$ denote the angle of incidence and refraction, then:

Q. A prism having refractive index 1.414 and refracting angle ${30}^{\circ }$ has one of the refer A prism having refractive index 1.414 and refracting angle ${30}^{\circ }$ has one of the referacting surface silvered. A beam of light incident on the other refracting surface will retrace its path, if the angle of incidence is acting surface silvered. A beam of light incident on the other refracting surface will retrace its path, if the angle of incidence is