MEDIUM
CUET (UG)
IMPORTANT
Earn 100
For light incident from air on a slab of refractive index , the maximum possible angle of refraction is:
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Important Questions on Ray Optics and Optical Instruments
EASY
CUET (UG)
IMPORTANT
The wave length of light diminishes times ( for water) in a medium. A diver inside the water looks at an object whose natural colour is green. He sees the object as
EASY
CUET (UG)
IMPORTANT
Light travels through a glass plate of thickness and having a refractive index . If is the velocity of light in vacuum, the time taken by the light to travel this thickness of glass is
EASY
CUET (UG)
IMPORTANT
The refractive index of diamond is . Find the approximate velocity of light in diamond in cm per second .
EASY
CUET (UG)
IMPORTANT
A microscope is focussed on a mark on a piece of paper and then a slab of glass of thickness and refractive index is placed over the mark. How should the microscope be moved to get the mark in focus again?
EASY
CUET (UG)
IMPORTANT
A light of wavelength travels from rarer medium to denser medium of refractive index . If its frequency in the rarer medium is then its frequency in the denser medium will be
EASY
CUET (UG)
IMPORTANT
A light wave travels from glass to water. The refractive index for glass and water are and , respectively. The value of the critical angle will be
EASY
CUET (UG)
IMPORTANT
Which of the following is not due to total internal reflection ?
EASY
CUET (UG)
IMPORTANT
The speed of light in media and are and respectively. A ray of light enters from medium to at an incidence angle . If the ray suffers total internal reflection, the value of is:
