Optics previous year question papers

Optics and geometrical optics 1 how does the angle of minimum deviation of classroom very eating get violet light is replaced by right right give reason why does the sun appear red at sunrise and sunset is a bluish color predominate in the sky concave lens of refractive index 1.5 is immersed in the medium of refractive index when an object is placed between f and weight of a concave mirror would you would the image formed by the real or virtual tour magnified biconvex lens made of of a transparent material of refractive index 1.25 it is immersed in water of refractive index 1.333 will the lens behave by converting or diverging give reason a biconvex lens made of a transparent material of refractive index 1.58 is immersed in water for reflective index 1.333 the lesbian the converging and diverging lens convex lens is placed in contact with the in mirror a point object at a distance of 20cm on the Nexus of the combination has the considering with itself what is the focal length of a lens what the relationship between angle and indicate I angle of prism and the angle of minimum deviation from rectangle prism when light red light passing through a convex lens is placed by a light of blue color how will the focal length of lens change how does the focal length of a lens change when the red light indicate on the replaced by wallet light give reason for your answer name the physical quantity which remains same for microwave or micro length 1m and UV radiation of 1600 in a vacuum and name the physical quantity which remains same under the glass having a certain reflective index act as a plain glass sheet when immersed in a liquid for the same value of angle of incidence the angle of reflection in 3 medium a B and C r 15 degree and 45 degrees and 45 degrees represent respectively in which medium would it.