Description : The refractive index of a medium with permittivity of 2 and permeability of 3 is given by a) 3.56 b) 2.45 c) 3.21 d) 1.78
Last Answer : b) 2.45
Description : Find the ratio of the refractive index of medium 1 to that of medium 2, when the incident and reflected angles are given by 300 and 450 respectively. a) 0.5 b) 1 c) 2 d) 4
Last Answer : c) 2
Description : The refractive index of a material with permittivity 16 is given by a) 16 b) 256 c) 4 d) 8
Last Answer : c) 4
Description : Find the relative permittivity of the medium having a refractive index of 1.6 a) 0.4 b) 2.56 c) 3.2 d) 4.8
Last Answer : b) 2.56
Description : For a critical angle of 60 degree and the refractive index of the first medium is 1.732, the refractive index of the second medium is a) 1 b) 1.5 c) 2 d) 1.66
Last Answer : b) 1.5
Description : Find the ratio of refractive index of medium 2 to that of medium 1, when the Brewster angle is 60 degree. a) 0.707 b) 1.5 c) 0.866 d) 1.732
Last Answer : d) 1.732
Description : The refractive index is 2.33 and the critical angle is 350. Find the numerical aperture. a) 2 b) 1.9 c) 2.33 d) 12
Last Answer : b) 1.9
Description : The core refractive index should be lesser than the cladding refractive index for a coaxial cable. State True/False a) True b) False
Last Answer : b) False
Description : The refractive index of air is unity. State True/False. a) True b) False
Last Answer : a) True
Description : The refractive index of water will be a) 1 b) 2.66 c) 5 d) 1.33
Last Answer : d) 1.33
Description : Find the refractive index of a medium having a velocity of 1.5 x 10 8 . a) 0.5 b) 5 c) 0.2 d) 2
Last Answer : d) 2
Description : Compute the refractive index when the dielectric constant is 256 in air. a) 2562 b) 16 c) 256 d) 64
Last Answer : b) 16
Description : The expression for magnetization is given by(I-current, A-area, V-volume) a) M = IAV b) M = IA/V c) M = V/IA d) M = 1/IAV
Last Answer : b) M = IA/V
Description : The expression for the inductance in terms of turns, flux and current is given by a) L = N dφ/di b) L = -N dφ/di c) L = Niφ d) L = Nφ/i
Last Answer : a) L = N dφ/di
Description : The angle of incidence of a wave of a wave with angle of transmission 45 degree and the refractive indices of the two media given by 2 and 1.3 is a) 41.68 b) 61.86 c) 12.23 d) 27.89
Last Answer : a) 41.68
Description : The critical angle for two media of refractive indices of medium 1 and 2 given by 2 and 1 respectively is a) 0 b) 30 c) 45 d) 60
Last Answer : b) 30
Description : Calculate the ratio of sine of incident angle to the sine of reflected angle when the refractive indices of medium 1 and 2 are given as 2.33 and 1.66 respectively. a) 0.71 b) 1.4 c) 2 d) 3.99
Last Answer : a) 0.71
Description : The expression for velocity of a wave in the conductor is a) V = √(2ω/μσ) b) V = √(2ωμσ) c) V = (2ω/μσ) d) V = (2ωμσ)
Last Answer : a) V = √(2ω/μσ)
Description : (1/V) (∂V/∂T)Pis the mathematical expression (A) Joule-Thomson co-efficient (B) Specific heat at constant pressure (Cp) (C) co-efficient of thermal expansion (D) Specific heat at constant volume (CV)
Last Answer : (C) co-efficient of thermal expansion
Description : (∂E/∂T)V is the mathematical expression for (A) CV (B) Enthalpy change (C) Free energy change (D) None of these
Last Answer : (D) None of these
Description : Photons are incident from vacuum on a transparent material with a refractive index n for a given wavelength. Determine the momentum of the incident ph
Last Answer : Photons are incident from vacuum on a transparent material with a refractive index n for a given wavelength. ... (nlambda)` D. `h//lambda(n+1)`
Description : In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is (A) 1 (B) 1.4 (C) 1.5 (D) Y = Cp/Cv
Last Answer : A) 1
Description : The expression for intrinsic impedance is given by a) √(με) b) (με) c) √(μ/ε) d) (μ/ε)
Last Answer : c) √(μ/ε)
Description : The expression for phase constant is given by a) Phase constant β = ωμε b) Phase constant ω = με c) Phase constant β = ω√(με) d) Phase constant β = 1/ωμε
Last Answer : c) Phase constant β = ω√(με)
Description : The expression for the loss tangent is given by a) σ/ωε b) ωε/σ c) σ/ω d) ω/ε
Last Answer : a) σ/ωε
Description : The ratio of the speed of light in a vacuum and the speed of light in the material used. ∙ a. S/N ratio ∙ b. Refractive index ∙ c. Intermodal dispersion ∙ d. Monomode ratio
Last Answer : b. Refractive index
Description : Find the sequence to find B when E is given. a) E-D-H-B b) B-E-D c) H-B-E-D d) V-E-B
Last Answer : a) E-D-H-B
Description : The sequence for finding E when charge density is given is a) E-D-ρv b) E-B-ρv c) E-H-ρv d) E-V-ρv
Last Answer : a) E-D-ρv
Description : The point form of Ampere law is given by a) Curl(B) = I b) Curl(D) = J c) Curl(V) = I d) Curl(H) = J
Last Answer : d) Curl(H) = J
Description : The given equation satisfies the Laplace equation. V = x 2 + y 2 – z 2 . State True/False. a) True b) False
Description : If the potential is given by, V = 10sin θ cosφ/r, find the density at the point P(2, π/2, 0) (in 10 -12 units) a) 13.25 b) 22.13 c) 26.31 d) 31.52
Last Answer : b) 22.13
Description : Given the potential V = 25 sin θ, in free space, determine whether V satisfies Laplace’s equation. a) Yes b) No c) Data sufficient d) Potential is not defined
Last Answer : a) Yes
Description : The point form of Gauss law is given by, Div(V) = ρv State True/False. a) True b) False
Description : The curl of curl of a vector is given by, a) Div(Grad V) – (Del) 2 V b) Grad(Div V) – (Del) 2 V c) (Del) 2 V – Div(Grad V) d) (Del) 2 V – Grad(Div V)
Last Answer : b) Grad(Div V) – (Del) 2 V
Description : The torque expression of a current carrying conductor is a) T = BIA cos θ b) T = BA cos θ c) T = BIA sin θ d) T = BA sin θ
Last Answer : c) T = BIA sin θ
Description : In electric fields, D= ε E. The correct expression which is analogous in magnetic fields will be a) H = μ B b) B = μ H c) A = μ B d) H = μ A
Last Answer : b) B = μ H
Description : The basic filtration equation is given as dt/dV = (µ/A ∆P). [(α .CV/A) + Rm], where, V is volume of the filtrate; A is the filtration area, a is specific cake resistance, μ is viscosity of ... produced? Neglect filter medium resistance, Rm; assume incompressible cake. (A) 10 (B) 20 (C) 25 (D) 30
Last Answer : (B) 20
Description : The refractive index of a given piece of transparent quartz is greatest for which light? -Do You Know?
Last Answer : answer:
Description : How do you calculate refractive index of a given solvent?
Last Answer : Need answer
Description : The refractive index of a given piece of transparent quartz is greatest for which light?
Last Answer : Violet light
Description : According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2); (A) The angle of incidence is equal to the angle of refraction (B) The angle of ... r) is given by sin i (C) Both (a) and (b) (D) Neither (a) nor (b)
Last Answer : Answer: Option B
Description : Ratio of the velocity of propagation of a light ray in free space to the velocity of propagation of a light ray in free space in a given material. ∙ A. refractive index ∙ B. standing wave ratio ∙ C. velocity factor ∙ D. propagation velocity
Last Answer : ∙ A. refractive index
Description : 1. The refractive index of a given piece of transparent quartz is greatest for which light? 2. Where were the war criminals of the II World War put to trial? 3. Ali Akbar plays which musical instrument? 4. ... rivers fall in the Bay of Bengal? 20. Who is known as the Grand Old Man of India' ?
Last Answer : Answer : 1. Violet light 2. Peitersburg 3. Sarod 4. Tokyo 5. 1576 6. Medulla oblongata 7. Government of India Act, 1935 8. Acetic acid 9. Gulf of Khambat 10. Bijapur 11. The Bank Note ... Jaimal 16. Four lions 17. Ionospheric wave 18. Anuradha Roy 19. Ganga, Brahmaputra, Hooghly 20. Dadabhai Naoroji
Description : (∂H/∂T)P is the mathematical expression for (A) CV (B) Entropy change (C) Gibbs free energy (D) None of these
Description : (∂T/∂P)H is the mathematical expression for (A) Specific heat at constant pressure (Cp) (B) Specific heat at constant volume (Cv) (C) Joule-Thompson co-efficient (D) None of these
Last Answer : (C) Joule-Thompson co-efficient
Description : In waveguides, which of the following conditions will be true? a) V > c b) V < c c) V = c d) V >> c
Last Answer : a) V > c
Description : The sequence for finding H from E is a) E-B-H b) E-V-H c) E-D-H d) E-A-H
Last Answer : a) E-B-H
Description : Which of the following identities is always zero for static fields? a) Grad(Curl V) b) Curl(Div V) c) Div(Grad V) d) Curl(Grad V)
Last Answer : d) Curl(Grad V)
Description : Choose the best relation. a) A = -Div(V) b) V = Curl(A) c) H = -Grad(V) d) V = Div(E)
Last Answer : c) H = -Grad(V)
Description : If ∫ H.dL = 0, then which statement will be true? a) E = -Grad(V) b) B = -Grad(D) c) H = -Grad(Vm) d) D = -Grad(A)
Last Answer : c) H = -Grad(Vm)