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Presume you are asked to find the characteristics of the image of an actual physical object formed by a single lens and you obtain a negative value for the magnification. What does this notify you about the image?
Answer:
This is merely a human-established convention. A negative value for the exaggeration means that the image is upside down (inverted).
Reflection law For a wavefront intersecting reflecting surface, the angle of incidence is equivalent to the angle of reflection, in the similar plane described by the ray of i
Point out the direction of the current if any induced to flow in the coil by the changing magnetic field. (Depicted is a view of the coil from the side. Toward the top of the displ
An ice-skater with a moment of inertia of 1.1 kg/m2 starts to spin with her arms extended. After 25 s, she has an angular velocity of 15 rev/s. What is the net torque acting on
Causes of Low power factor The major causes of low power factor in the electric supply system are as follows. Due to reactive load Most of the AC motors used in i
Sliding friction Lock the rollers of a roller skate by criss-crossing rubber bands more than them on both sides. Place the roller skate on a sloping board and reminder how the
the magnetic field at a dictance of 2cm from the axis of a straight conductor carrying current is 12mT.Find the currentin the conductor?
give a example
A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of
Faraday's laws of electrolysis (M. Faraday) Faraday's first law of electrolysis At time of electrolysis the amount of chemical change is proportion
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