Ray Optics and Optical Instruments questions
782 published questions with worked solutions.
- Sita, 1·5 m high, stands before a plane mirror fixed on a wall to view her full image. What should be the minimum height of the...
- A microscope may be a combination of :
- Which of the following statements with regard to the phenomenon of the primary rainbow formation by water droplets is/are correct...
- A point object is placed at the centre of curvature of a spherical concave mirror. Which one among the following would be the...
- Which one among the following is the correct focal length of a combination of lenses of power 2·5 D and –2·0 D ?
- An object is placed between infinity and the pole (P) of a convex mirror. The position of the image is
- When a light ray passes through from air to water with a non-zero angle the ray will be
- The focal length of a concave lens is 0·5 m. The power of the lens is
- In a Telescope, compared to the eyepiece lens the objective lens has
- Bottom of a tank containing water appears to be raised. It is due to
- An object is placed far beyond the centre of curvature of a concave mirror. The object then starts accelerating towards the...
- A periscope uses two plane mirrors inclined at 45°. If the tube of the periscope is filled with a complete transparent liquid of...
- It has been observed that a mirror always forms the image between the pole and the focus, irrespective of the location of the...
- Which of the following is correct regarding the total internal reflection at the interface between two different optical media ?
- A fish is at a depth d in water of refractive index 4/3. If a transparent slab of refractive index 3/2 and thickness d/2 is...
- A biconvex lens is made of a material of refractive index 2 such that the ratio of the radii of curvature of its two faces is 1 :...
- Three parallel glass slabs of refractive indices 1·5, 3 and 1·5 respectively have widths 2 mm, 1 mm and 4 mm. The combination is...
- If a wave gets refracted into a denser medium, then which of the following is true?
- Consider a light ray travelling in air is incident into a medium of refractive index 2n . The incident angle is twice that of...
- The power of a lens (biconvex) is 1.25 m^ -1 in particular medium. Refractive index of the lens is 1.5 and radii of curvature are...
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