NECO UPDATES 2024

Neco physics answers 2021

Neco physics answers 2021

Here is the Neco physics answers for 2021, stay tuned for more updates

6a)

A wave front is the locus of points characterized by

propagation of position of the same phase: a propagation

of a line in 1D, a curve in 2D or a surface for a wave in

3D. In other words a line or surface in the path of an

advancing wave on which all the particles are vibrating in

phase is called a wave front.

(1b)

Tabulate

– Simple Microscope it is used for reading small prints and for studying biological specimens.

– The magnifying glass or simple microscope is a convex lens which is used to produce magnified images of small object.

– When a converging lens is used as a simple microscope the object is placed between the principal focus and the optical center of the lens.

– The Compound microscope consists of two converging lenses of short focal lengths.

– To produce a higher magnification that obtained from a simple microscope.

(1c)

A simple microscope uses the optical power of single lens or group of lenses for magnification *While*; A compound microscope uses a system of lenses (one set enlarging the image produced by another) to achieve much higher magnification of an object

(8a)

*Lost volt:* The potential difference between the two terminals of a cell decrease by an amount that does not contribute to the circuit, is called lost volt.

 

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