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State Huygens ' Principle. For reflection of a plane wave front at a plane reflecting surface, construct the corresponding reflected wave front. Using this diagram, state that angle of incidence is equal to angle of reflection.
(1) Melting point : 936 0 C (2) Atomic number : 32 (3) Energy gap : 0.6ev (4) It is a gray metallic looking mat
Anode rays were discovered by: (1)Goldstein (b)J. Stoney (3)Rutherford (4)J.J. Thomson Ans: (1)Goldstein
A diffraction grating used at normal incidence provides a spectral line of certain order with wavelength 6000A 0 superimpose on another spectral line of wave length 5000A 0 of th
Q. Describe the parallel force? Answer:- Parallel forces are two or else more forces which perform in parallel. The forces don't have to be in the similar direction howeve
what is retardation
The differential equation of motion of freely oscillating body is given by 2 d 2 x/dt 2 + 8π 2 x = 0. Evaluate the natural frequency of the body?
Q. An aircraft having awing span of 10 m flies at a speed of 720 kmph. If the vertical component of the earth's magnetic field is 3 X 10 -5 T, calculate the emf induced between th
Q. What do you mean by lateral shift? and What could be the angle of incidence to have maximum lateral shift? Q. For what angle, lateral shift is minimum?
Newton's law of universal gravitation (Sir I. Newton): Two bodies attract to each other with equal & opposite forces; the magnitude of this force is proportional to the produ
Q When calculate Planck's constant, a student's calculations produce values of 5.78 × 10 -34 J·s and 7.29 × 10 -34 J·s. If the accepted value is 6.63 × 10 -34 J·s, what is
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