Ray Optics and Optical Instruments questions
782 published questions with worked solutions.
- The magnifying power of a refracting type of astronomical telescope is 'm'. If focal length of eyepiece is doubled then the...
- A ray of light travels from air to water to glass and again from glass to air. Refractive index of water w.r.t. air is 'X', glass...
- A ray of light travels from a denser medium to a rarer medium. The reflected and the refracted rays are perpendicular to each...
- A convex lens of focal length 'F' produces a real image 'n' times the size of the object. The image distance is [MHT-CET 2021]
- A convex lens of focal length f is used to form an image whose size is one fourth that of size of the object. Then the object...
- When a biconvex lens of glass having refractive index _g is dipped in a liquid of refractive index _m. It acts as a plane sheet...
- A glass prism A deviates red and blue rays through 10^0 and 12^0 respectively. A second prism B deviates them through 8^0 and...
- A thin prism in air produces the angle of minimum deviation ' '. If the prism is immersed in water, the angle of minimum...
- A double convex lens of refractive index 1.5 designed to reduce spherical aberration has ratio of radius of curvatures...
- A monochromatic beam of light passing through water (refractive index 4/3) has wavelength 5400Å. When it is refracted in glass...
- The focal length of concave lens is 30 cm. To form the image one-fifth of the size of object, object must be kept in front of the...
- A glass cube of length 24 cm has a small air bubble trapped inside. When viewed normally from one face it is 10 cm below the...
- The refractive index of glass is 1.5 and that of water is 1.33. The critical angle for a ray of light going from glass to water...
- The critical angle for light going from medium A into medium B is . The speed of light in the medium A is V_A. What is the speed...
- An object is located on a wall, its image of equal size is to be obtained on a parallel wall with the help of a convex lens. The...
- The magnifying power of a refracting type of astronomical telescope is 'm'. If focal length of eyepiece is doubled then the...
- A ray of light travels from air to water to glass and again from glass to air. Refractive index of water w.r.t. air is 'X', glass...
- A ray of light is incident on one face of an equilateral glass prism having refractive index 2. It produces the emergent ray...
- The radii of curvature of both the surfaces of a convex lens of focal length 'f' and focal power 'P' are equal. One of the...
- A glass slab has refractive index ' ' with respect to air and the critical angle for a ray of light in going from glass to air is...
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