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A convex lens of refractive index 1.5 has a focal length of 18 cm in air. Measure the change in its focal length when it is immersed in water of refractive index.
Distinguish among the terms 'average value' and 'rms value' of an alternating current.
The immediate current from an a.c. source is I = 5 sin (314 t) ampere. What are the average and rms values of the current?
These resistors are usually of carbon composition, carbon film on a ceramic rod and sealed in evacuated glass tube. End connections are made up of copper clad nickel-iron alloy.
Q. Briefly explain working of Michelsons Interferometer? Michelson designed an instrument for the measurement of wavelength of sodium light, thickness of thin film and for many
With the help of relevant diagrams, define the following terms: (i) Pulse-position modulation (PPM) (i) Pulse-duration modulation (PPM)
Two identical particles every having a charge of 1.0 coulombs are separated by 2.0 meters. What is the electric potential because of the pair of charged particles at the point midw
Thomson experiment; Kelvin effect (Sir W. Thomson [later Lord Kelvin]): While an electric current pass through a conductor whose ends are maintained at distinct temperatures,
Explain the Elementary Particles and Particle Accelerators More than 100 particles smaller than the proton, electron and neutron have been discovered and are referred to as eleme
Conductor: Conductors are those substances which permit electric current to passes easily by them. e.g. Metal, impure, water etc.
Which has additional rotational kinetic energy an object with a rotational inertia of 4 kg·m 2 and an angular velocity of 8 rad/s or else an object with a rotational inertia of 8
Describe concept about vibrational modes of carbon dioxide molecule. Vibrational Modes of CO 2 molecule While excited, the CO 2 molecule vibrates as masses joined by a spr
Q. A managing wire of length 2m has a diameter of 0.4 mm with a resistance of 70 ohm. Find its resistivity. ρ = ( P X πr 2 ) / L = ( 70 X 22 X 2 X 10 -4 X 2
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