Question 1: Where an object must be placed from a converging lens of focal length 20 cm so as to get a real image of magnification 2?
Question 2: Show that the angle of deviation is based on angle of incidence.
Question 3: Write down the difference between dispersive and non dispersive medium with illustrations.
Question 4: Show that lateral displacement is directly proportional to t and i1.
Question 5: What is the major requirement in the fabrication of optical fibers? How it can be accomplished? Write two illustrations.
Question 6: Obtain a relation for refraction from a rarer to denser medium at a convex spherical surface forming real image.
Question 7: Derive thin lens formula for the concave lens.
Question 8: What do you mean by the term myopia? What are its causes? How can it be corrected?
Question 9: Explain an astronomical telescope. Derive an expression for its magnifying power when final image is at
a) Infinity.
b) At D.
Question 10: Compound microscope consists of an objective lens of focal length 2 cm and eye lens of focal length 5 cm. If an object is placed 3 cm from the objective and final image is formed at the least distance of distinct vision, find out the magnification produced.
Question 11: A double convex lens made of glass of refractive index 1.5 consists of both curvatures of radii 20 cm. An object 2 cm high is placed 2 cm from this lens, find out the position, nature and size of the image.
Question 12: The angle of minimum deviation for yellow light in a prism of refractive index 1.6 is found to be 460. Compute refracting angle of the prism.
Question 13: Derive lens maker’s formula.
Question 14: Provide the construction and working of a compound microscope. Define and derive an equation for its magnifying power.
Question 15: For refraction via prism derive the prism formula.