Ray Optics and Optical Instruments questions
782 published questions with worked solutions.
- Some water is filled in a container of height 30 cm. If it is appear half filled to the observer when viewed from the top of the...
- In an equilateral prism the ray undergoes minimum deviation when it is incident at an angle of 50^ . The angle of minimum...
- Focal length of objective of an astronomical telescope is 1.5 m. Under normal adjustment length of telescope is 1.56m. Focal...
- A team of white light is partially reflected and partially refracted from a surface. The angle between the reflected and...
- A bubble in a glass (refractive index 1.5) when viewed from one side appears at 5 cm and 2 cm from other side then thickness of...
- The refractive index of material of glass is 3 . If the angle of minimum deviation is equal to the angle of prism, the angle of...
- In a compound microscope, let 'u_0' and 'v_0' be the object distance and image distance respectively. The objective of focal...
- To a bird in air, a fish in water appears to be at 30 cm from the surface. If refractive index of water with respect to air is 4...
- A glass convex lens is of refractive index 1.55 with both faces of same radius of curvature. What is the radius of curvature...
- The intermediate image formed by an objective lens of a compound microscope is
- A compound microscope produces a magnification of 24. The focal length of the eyepiece is 5 cm. The final image if formed at the...
- The refracting angle of a glass prism is 30^0. A ray in incident on one of the faces perpendicular to it. The angle of deviation...
- When final image is formed at D.D.V. from eye, the magnifying power of a simple microscope is (f = focal length of the lens)
- The critical angle is for a light going from medium P to medium Q. If speed of light in medium P is V_P then speed of light in...
- A double convex lens made of glass has both radii of curvature of magnitude 20 cm. Incident light rays parallel to the axis of...
- If a ray of light in denser medium strikes a rarer medium at an angle of incidence i, the angles of reflection and refraction are...
- A transparent glass cube of length 24 cm has a small air bubble trapped inside. When seen normally through one surface from air...
- The angle of prism is A and one of its refracting surface is silvered. Light rays falling at an angle of incidence '2A' on the...
- The rays of different colours fail to converge at a point after passing through a thick converging lens. This defect is called.
- Concave and convex lenses are placed touching each other. The ratio of magnitudes of their power is 2 : 3. The focal length of...
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