Ray Optics and Optical Instruments questions
782 published questions with worked solutions.
- An effective power of a combination of 5 identical convex lenses which are kept in contact along the principal axis is 25 D....
- Given below are two statements: Statement I: When the white light passed through a prism, the red light bends lesser than yellow...
- The refractive index of prism is μ = √3 and the ratio of the angle of minimum deviation to the angle of prism is one. The value...
- If we need a magnification of 375 from a compound microscope of tube length 150 mm and an objective of focal length 5 mm, the...
- The magnifying power of a telescope with tube length 60 cm is 5. What is the focal length of its eye piece ?
- The critical angle of a medium for a specific wavelength, if the medium has relative permittivity 3 and relative permeability 4 3...
- A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved surface is...
- A light ray enters a solid glass sphere of refractive index = 3 at an angle of incidence 60°. The ray is both reflected and...
- For the thin convex lens, the radii of curvature are at 15 cm and 30 cm respectively. The focal length of the lens is 20 cm. The...
- In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the eye-piece. The focal length of...
- The distance between an object and a screen is 100 cm. A lens can produce real image of the object on the screen for two...
- A compound microscope consists of an objective lens of focal length 1cm and an eye piece of focal length 5 cm with a separation...
- A prism of angle A = 1° has a refractive index = 1.5. A good estimate for the minimum angle of deviation (in degrees) is close to...
- A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is placed at a...
- A double convex lens has power P and same radii of curvature R of both the surfaces. The radius of curvature of a surface of a...
- A small telescope has an objective of focal length 140 cm and an eye piece of focal length 5.0 cm. The magnifying power of...
- A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) and emerges normally...
- A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the...
- A light ray falls on a glass surface of refractive index 3 , at an angle 60°. The angle between the refracted and reflected rays...
- Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 10^ 8 m/s and 2.0 10^...
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