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Give reason that ultrasonics not be produced by passing high frequency alternating current by a loud speaker
At these high frequencies, inductive reactance is so high where is no current flows throughout the coil of the loud speaker and therefore ultrasonic waves cannot be produced.
describe the principle, construction and working of Michelson Interferometer.
A monochromatic light of wavelength 6000Å is incident on a plane diffraction grating with grating element 6 X 10 -5 cm. Evaluate the maximum order of spectrum that will be observe
At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.90 m high net about 15.0 m from the server if the ball is “
The electric potential at a point in a consistent electric field in an evacuated region of space is 4 . 0 volts. The electric potential at a end 25 cm to the east of the first poin
An unknown tuning fork is sounded along w/ a tuning fork whose frequency is 256Hz and a beat frequency of 3 Hz is heard. What i the frequency of the unknown tuning fork?
What is the difference between circular and rotation motion
A convex lens of refractive index 1.5 of focal length 0.2m is immersed in water of refractive index 1.33. Determine the focal length of lens in water.
(i) It is the length of single wave. (ii) Wavelength is similar to the distance covered by the wave during the time in which any one particle of the medium done one vibration ab
Explain Independence of Vectors Quantities Perpendicular vector quantities are independent of one another. This means that the actions of one vector will not affect the action
What is the ratio of mass of an electron to the mass of a proton: (1) 1 : 2 (2) 1 : 1 (3) 1 : 1837 (4) 1 : 3 Ans: 1: 1837
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