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The product of frequency and time period is equal to : 1, 2, 3, 4
Bel is the unit of : Intensity level of sound, Density level of sound, deny level of sound, joule level of sound
The critical angle of Diomond is ----------- : 24, 25, 23, 26
In 1776 AD an italian scientist------ invented the chemical battery : Alexandro Volta, waldon Volta, wendor Volta, Aliya Volta
The specific resistance of copper is ----------- : 1.69 ?m, 2.69 ?m, 3.65 ?m, 6.54?m
The unit of current is known as ------------ : Ampere, Volt, cullvent mater , hp Volt
The number of magnetic lines of force passing through any surface is known as ---- through the surface : Magnetic flux, Electron flux, Protron flux, Neutro flux
When a neutron emit Alph Bete-particles it changes into a ------- : Proton, Electron, Magnetic, Neutro
Measuring unit of Nuclear radiation is ------- : Rem, Kem, Uem, IUM
A and B are the two input of a NOR gate .its output would be 1 when ----- : 1 = 0 , B = 0, 1 = 1 , B = 1, 1 = 2 , B = 2, 1 = 3 , B = 3
Is fitted in a telephone reciver : Electromagnet and Diaphragm, magnet and Diaphragm, Protronmagnet and Diaphragm, Neutronmagnet and Di
If the length of a simple pendulum is halved its time period T will become : T/?2, T/?3, T/?4, T/?5