The speed of electromagnetic waves in vaccum is equal to
The speed of electromagnetic waves in vaccum is equal to Options (a) μ₀ε₀ (b) √(μ₀ε₀) (c) 1/√(μ₀ε₀) (d) 1/(μ₀ε₀) Correct…
7 years ago
UK2014
Two thin long conductors seprated by a distance d carry currents
Two thin long conductors seprated by a distance d carry currents I₁ and I₂ in the same direction. They exert…
7 years ago
The magnetic field due to a current carrying circular loop of radius 3 cm at a point
The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis…
7 years ago
To get three images of single object, one should have two plane mirrors at an angle of
To get three images of single object, one should have two plane mirrors at an angle of Options (a) 60⁰…
7 years ago
In a given reaction, ᴢXᴬ → ᴢ+1Yᴬ → ᴢ-1Kᴬ⁻⁴ → ᴢ-1Kᴬ⁻⁴
In a given reaction, ᴢXᴬ → ᴢ+1Yᴬ → ᴢ-1Kᴬ⁻⁴ → ᴢ-1Kᴬ⁻⁴ The radioactive radiations are emitted in the sequence of…
7 years ago
The angle of incidence at which reflected light is totally polarised for refraction
The angle of incidence at which reflected light is totally polarised for refraction from air to glass (refractive index μ)…
7 years ago
Colours appear on a thin soap film and soap bubbles due to the phenomenon of
Colours appear on a thin soap film and soap bubbles due to the phenomenon of Options (a) interference (b) scattering…
7 years ago
An electric dipole placed in a non-uniform electric field experiences
An electric dipole placed in a non-uniform electric field experiences Options (a) Both a torque and a net force (b)…
7 years ago
Two charged spheres seperated at a distance d exert a force F on each other.
Two charged spheres seperated at a distance d exert a force F on each other. If they are immersed in…
7 years ago
Zenor diode is used for
Zenor diode is used for Options (a) amplification (b) rectification (c) voltage regulation (d) produce oscillation in an oscillator Correct…
7 years ago