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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 [...]
Aluminium oxide is not reduced by chemical reactions since (a) Aluminium oxide is reactive (b) Reducing agents contaminate
17
Nov
Aluminium oxide is not reduced by chemical reactions since (a) Aluminium oxide is reactive (b) Reducing agents contaminate Aluminium oxide is not reduced by chemical reactions since (a) Aluminium oxide is reactive (b) Reducing agents contaminate November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
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 [...]
Consider telecommunication through optical fibres. Which of the following statements is not true?
17
Nov
Consider telecommunication through optical fibres. Which of the following statements is not true? Consider telecommunication through optical fibres. Which of the following statements is not true? November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - Refraction of Light by Plane Surfaces , Part 2 ,
Heating an aqueous solution of aluminium chloride to dryness will give (a) AlCl3 (b) Al2Cl6 (c) Al2O3
17
Nov
Heating an aqueous solution of aluminium chloride to dryness will give (a) AlCl3 (b) Al2Cl6 (c) Al2O3 Heating an aqueous solution of aluminium chloride to dryness will give (a) AlCl3 (b) Al2Cl6 (c) Al2O3 November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. The maximum possible deviation of the ray will be
17
Nov
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. The maximum possible deviation of the ray will be A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. The maximum possible deviation [...]
A ray of light travels from a medium of refractive index `u` to air. Its angle of incidence in the medium is `i`, measured from the normal to the boundary, and its angle of deviation is `delta. delta` is plotted against `i`. Which of the following best represents the resulting curve?
17
Nov
A ray of light travels from a medium of refractive index `u` to air. Its angle of incidence in the medium is `i`, measured from the normal to the boundary, and its angle of deviation is `delta. delta` is plotted against `i`. Which of the following best represents the resulting curve? A ray of light [...]
Which one of the following exist in the oxidation state other than +3 (a)B (b) Al (c) Ce (d) Ga
17
Nov
Which one of the following exist in the oxidation state other than +3 (a)B (b) Al (c) Ce (d) Ga Which one of the following exist in the oxidation state other than +3 (a)B (b) Al (c) Ce (d) Ga November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Moissan boron is (a) Amorphous boron of ultra purity (b) Crystalline boron of ultra purity (c) Amorphous boron of low purity
17
Nov
Moissan boron is (a) Amorphous boron of ultra purity (b) Crystalline boron of ultra purity (c) Amorphous boron of low purity Moissan boron is (a) Amorphous boron of ultra purity (b) Crystalline boron of ultra purity (c) Amorphous boron of low purity November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A rectangular glass slab ABCD of refractive index n1 , is immersed in water of refractive index n2 (n1 > n2 ). A ray of light is incident at the surface AB of the slab as shown in the figure. The maximum value of angle of incidence α max , such that the ray comes out only from the other surface CD, is given by
17
Nov
A rectangular glass slab ABCD of refractive index n1 , is immersed in water of refractive index n2 (n1 > n2 ). A ray of light is incident at the surface AB of the slab as shown in the figure. The maximum value of angle of incidence α max , such that the ray comes [...]
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Cengage NEET by C.P Singh
,
Chapter 17 - Refraction of Light by Plane Surfaces
,
Part 2
,
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A rectangular glass slab ABCD of refractive index n1 ,
is given by ,
is immersed in water of refractive index n2 (n1 > n2 ). A ray of light is incident at the surface AB of the slab as shown in the figure. The maximum value of angle of incidence α max ,
such that the ray comes out only from the other surface CD ,