Ray Optics Test...

Emission spectrum of CO₂ gas

A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence is equal tothe angle of emergence and each of these angles is equal to 3/4 of the angle of the prism. The angle of deviation is

A beam of light consisting of red, green and blue colours is incident on a right-angled prism ABC. The refractive indices of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47 respectively. The colour/colours transmitted through the face AC of the prism will be

When light emitted by a white hot solid is passed through a sodium flame, the spectrum of the emergent light will show

A prism ABC of angle 30° has its face AC silvered. A ray of light incident at an angle of 45° at the face AB retraces its path after refraction at face AB and reflection at face AC. The refractive index of the material of the prism is

A light ray is incident upon a prism in minimum deviation position and suffers a deviation of 34°. If the shaded half of the prism is knocked off, the ray will

A ray of monochromatic light is incident on one refracting face of a prism of angle 75°. It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the material of the prism is √2 the angle of incidence on the first face of the prism is

Three glass prisms A, B and C of same refractive index are placed in contact with each other as shown in figure, with no air gap between the prisms. Monochromatic ray of light OP passes through the prism assembly and emerges as QR. The conditions of minimum deviation is satisfied in the prisms

The refractive index of a material of a prism of angles 45°– 45° – 90° is 1.5. The path of the ray of light incident normally on the hypotenuse side is shown in

Angle of deviation (δ) by a prism (refractive index = μ and supposing the angle of prism A to be small) can be given by