Ray Optics and Optical Instruments questions
782 published questions with worked solutions.
- A thin prism P_1 with angle 4° made of glass having refractive index 1.54, is combined with another thin prism P_2 made of glass...
- In a long glass tube, mixture of two liquids A and B with refractive indices 1.3 and 1.4 respectively, forms a convex refractive...
- A concave mirror produces an image of an object such that the distance between the object and image is 20 cm. If the...
- A convex lens mode of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water...
- A bi-convex lens has radius of curvature of both the surfaces same as 1/6 cm. If this lens is required to be replaced by another...
- Two identical objects are placed in front of convex mirror and concave mirror having same radii of curvature of 12 cm, at same...
- A ray of light suffers minimum deviation when incident on a prism having angle of the prism equal to 60°. The refractive index of...
- A monochromatic light of frequency 5 10^ 14 Hz travelling through air, is incident on a medium of refractive index '2'....
- Light from a point source in air falls on a spherical glass surface (refractive index, = 1.5 and radius of curvature = 50 cm)....
- Consider following statements for refraction of light through prism, when angle of deviation is minimum. A. The refracted ray...
- The radii of curvature for a thin convex lens are 10 cm and 15 cm respectively. The focal length of the lens is 12 cm. The...
- When an object is placed 40 cm away from a spherical mirror an image of magnification 1 2 is produced. To obtain an image with...
- Distance between object and its image (magnified by - 1 3 ) is 30 cm. The focal length of the mirror used is ( x 4 ) cm, where...
- A convex lens of focal length 30 cm is placed in contact with a concave lens of focal length 20 cm. An object is placed at 20 cm...
- A concave-convex lens of refractive index 1.5 and the radii of curvature of its surfaces are 30 cm and 20 cm, respectively. The...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) :...
- A mirror is used to produce an image with magnification of 1 4 . If the distance between object and its image is 40 cm, then the...
- A thin convex lens made from crown glass ( = 3 2 ) has focal length f. When it is measured in two different liquids having...
- A green light is incident from the water to the air-water interface at the critical angle ( ). Select the correct statement -
- An observer looks at a distant tree of height 10 m with a telescope of magnifying power of 20. To the observer the tree appears :
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