Critical angle of light passing from glass to water is minimum for : 1. red colour 2. green colour 3. yellow colour 4. violet colour
Sahay Sir > Question Answers > Critical angle of light passing from glass to water is minimum for : 1. red colour 2. green colour 3. yellow colour 4. violet colour
Which of the following options are correct regarding prism? 1. A ray of light will not come out of a prism (whatever be the angle of incidence) if A>2C i.e. if μ>cosec(A/2) 2. Deviation will be maximum when angle of incidence i is maximum i.e. i=90^∘ 3. In case of minimum deviation (i) angle of incidence i=angle of emergence i′ (ii) r=r′=A/2 (iii) μ=sin(A+δm/2)/sin(A/2) (iv) If the prism is equilateral (or isosceles), the ray inside the prism will be parallel to its base 4. All options are correct
17
Nov
Which of the following options are correct regarding prism? 1. A ray of light will not come out of a prism (whatever be the angle of incidence) if A>2C i.e. if μ>cosec(A/2) 2. Deviation will be maximum when angle of incidence i is maximum i.e. i=90^∘ 3. In case of minimum deviation (i) angle of [...]
Pick out the correct statements about optical fibres from the following: S1: Optical fibres are used for the transmission of optical signals only S2: Optical fibres are used for transmission of optical electrical signals S3: The intensity of light signals sent through optical fibres suffer very small loss S4: Optical fibres effectively employ the principle of multiple total internal reflections S5: Optical fibres are glass fibres coated with a thin layer of a material with lower refractive index
17
Nov
Pick out the correct statements about optical fibres from the following: S1: Optical fibres are used for the transmission of optical signals only S2: Optical fibres are used for transmission of optical electrical signals S3: The intensity of light signals sent through optical fibres suffer very small loss S4: Optical fibres effectively employ the principle [...]
Critical angle of light passing from glass to water is minimum for : 1. red colour 2. green colour 3. yellow colour 4. violet colour
17
Nov
Critical angle of light passing from glass to water is minimum for : 1. red colour 2. green colour 3. yellow colour 4. violet colour Critical angle of light passing from glass to water is minimum for : 1. red colour 2. green colour 3. yellow colour 4. violet colour November 17, 2020 Category: Cengage [...]