Ray Optics Test...

An achromatic prism is made by combining two prisms P₁ (μ_v =1.523, μ_r = 1.515) and P₂ (μ_v = 1.666, μ_r = 1.650) ; where μ represents the refractive index. If the angle of the prism P₁ is 10°, then the angle of the prism P₂ will be

If the ratio of amounts of scattering of two light waves is 1:4, the ratio of their wavelength is

The band spectra (characteristic of molecular species) is due to emission of radiation

Beams of red, green and violet light are falling on the refracting face of a prism, all at the same angle of incidence, if their angles of deviation are θ₁, θ₂ and θ₃respectively, then

The spectrum of iodine gas under white light will be

A medium is said to be dispersive, if

A ray of light is incident at an angle of 60° on one face of a prism of angle 30°. The ray emerging out of the prism makes an angle of 30° with the incident ray. The emergent ray is

In a thin prism of glass (refractive index 1.5), which of the following relations between the angle of minimum deviations δ_m and angle of refraction r will be correct

The figures represent three cases of a ray passing through a prism of angle A. The case corresponding to minimum deviation is

Dispersion can take place for