Ray Optics and Optical Instruments questions
782 published questions with worked solutions.
- The time taken by the sunlight to reach the bottom of a tank depth 4.5 m filled completely with water is ______ ns. The...
- A wave of light having frequency 4 10^ 14 Hz and speed of light 3 10^ 8 m/s enters glass of R.I. 1.5. Change in wavelength is...
- A light wave enters from air into a medium of refractive index 4 3 . If wavelength of light in air is 6000 Å, then the wave...
- For the same angle of incidence, the angles of refraction in media 'P', 'Q', 'R' and 'S' are 50^ ,40^ ,30^ ,20^ respectively. The...
- The Brewster angle for the glass-air interface is 54.74^ . If a ray of light going from air to glass strikes at an angle of...
- A ray of light is incident at an angle i on a glass slab of refractive index . The angle between reflected and refracted light is...
- A light is travelling from air into a medium. Velocity of light in a medium is reduced to 0.75 times the velocity in air. Assume...
- The refractive index of glass w.r.t a medium is 4 3 . If v_m - v_g = 6.25 10^ 7 m/s , then the velocity of light in the medium...
- The angle of incidence is found to be twice the angle of refraction when a ray of light passes from vacuum into a medium of R.I....
- Light enters from air into a medium of refractive index 1.5. Percentage change in its wavelength is
- Velocity of light in diamond ( 2 5 )^ th that in air. Velocity of light in water is ( 3 4 )^ th that in air. The angle of...
- A parallel beam of monochromatic light is incident on a glass slab at an angle of 35^ . The ratio width of beam in glass to that...
- Statement 1: Speed of light in glass is independent of the colour of light Statement 2: The violet colour travels faster than the...
- In geometrical optics, a ray of light is defined as
- For a ray of light, which of the following statements holds true?
- For the same angle of incidence, the angles of refraction in media P, Q, R and S are 50^ , 40^ , 30^ and 20^ , respectively. The...
- In a Fresnel biprism experiment, the two positions of lens give separation between the slits as 16 cm and 9 cm, respectively....
- The magnifying power of a telescope is nine. When it is adjusted for parallel rays, the distance between the objective and...
- When light enters glass from vacuum, then the wavelength of light [MHT-CET 2023]
- The focal length of the objective used in compound microscope and telescope is respectively [MHT-CET 2023]
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