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Spectrum and electromagnetic radiations:
What is a spectrum?
Ans: A spectrum is a group of wave lengths or frequencies.
What are the electromagnetic radiations?
Ans: Electromagnetic radiations are characterized by oscillating electric and magnetic fields perpendicular to each other and also perpendicular to the direction of propagation. All these radiations travel with the same speed,that is 3 x 108m/s2.
A scooterist is racing at a speed of 72 km per hour. If the radius of the wheel is 20 cm, find the angular speed of the wheels. Ans) 72kmph=20m/s 20cm=0.2m; v=rw w=v/r w=20/0
Can you show mathematically that the total energy of a simple harmonic oscillator remains constant?
(i) A disk shaped flywheel of uniform density _, outer radius R and thickness w. rotates with angular velocity _, obtain an expression for the moment of inertia 2 vol I =_ρ r dV
Can you differentiate between half wave plate and full wave plate?
It is described as the nature of charge potential of charge potential is of two types: (i) Positive potential: with respect to positive charge. (ii)Negative potential: with r
Mosley studied the characteristic X-ray spectrum of a number of a heavy elements and concluded that the spectra of dissimilar elements are very same and with enhancing atomic value
when dispersion is happening from a prism, the colors are separated out. do each of these colors move with different velocities to keep frequency constant? practically is it possib
Que: Consider a capacitor containing of two flat metal plates of one and the same size. The plates are opposite each other and they are well-aligned with each other. The plates
Q. When there is no feedback, the gain of the amplifier is 100. If 5% of the output voltage is fed back into the input through a negative network, find the voltage gain after feedb
Determine the Shear Force in kN rounded to 1 DP and Bending Moment in kN.m rounded to 1 DP at point C in the beam when the UDL on the beam is P52 kN/m (as for the previous question
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